Multi-channel radio monitoring and correlation interference direction-finding fixed station system

Multi-channel wireless monitoring and related interference the direction-finding fixing station system

technical field

Are the invention relates to a multi-channel wireless monitoring and related interference the direction-finding fixing station system, belonging to array digital signal processing the direction-finding technical field of the communication.

background technology

Are the early monitoring direction-finding system for is a amplitude-comparison the direction-finding system, comprising the comparison antenna array is elementary antenna with the signal amplitude size of, a position signal. And the method, wherein the power of withstanding is two electromagnetic environment influence of two, normally measurement the output signal position is inaccurate, wherein the direction-finding precision not higher, attenuator is section; the direction-finding system slowly and easily of interference and universal. Along with the deepening of radiofrequency spectrum monitoring work; the early monitoring device and monitoring technology oneself it adapts the historical and other. Therefore, our is aims at the universal vanguard technology, comprising researched and developed the multi-channel wireless monitoring and has interferometer the direction-finding fixing station system, comprising plug the domestic gap.

invention content

Target of this invention is in aggregate of the upside of the early wireless monitoring with, claims of multi-channel wireless monitoring and related interference the direction-finding fixing device, system for monitoring display and direction-finding to vertically polatized wave's multi-radio communication signal; In turn to of improving the direction-finding system, increase monitoring direction-finding precision and sensitivity and an anti-interference capability.

technical solution of this invention: The structure, high; the low-end power is rotary-screen switch and power divider and first antenna band; a RF amplifier and binary channel direction-finding receiver and digital intermediate frequency discriminator and monitoring direction-finding processing unit and control industrial computer and low-end vertical polarization antenna monitoring and high-end vertical polarization antenna monitoring and second antenna selector, monitoring receiver, battery or commercial power; UPS and environment control and remote control power supply unit, concentrator and network comprises a vertical polarization and base interferometer the direction-finding antenna array.

Monitoring receiver is provided with the wireless monitoring; the binary channel direction-finding receiver is used for radio the direction-finding, capable of a on the wireless monitoring and direction-finding.

Power of this invention: At the same time a pair of antenna linear sampling element and ensure the synchronous, and a precise. By and operation relative to the signal and amplitude phase information of the antenna array receiving, and obtaining signal position, wherein the is the direction-finding precision and sensitivity, around the anti-interference capability. For broadband large diameter of the direction-finding antenna array, a solved the crossed coupling problems between the antenna array very element, a removed between the antenna elementary the coupling and phase ambiguity. And the passive the direction-finding, can avoid causing the further interferometer the direction-finding antenna space the phase line wherein a linear one of active amplifier the bracket. Provided with the enhanced, nonstop, attenuation three pair of functions amplifiers; and auto-switching, widened the received signal application dynamic range, wherein when the acoustic signal, not easy to generate wherein a signal and blocking. Moreover monitoring and direction-finding hood is a on, the direction-finding speed speeds of. The high-precision is high, attenuator is good, the fast speed and systemic stability and reliability and high.

Brief description for drawings

The auxiliary digital 1 is the invention embodiment electric executing block diagram.

The direction-finding antenna array schematic drawing of the auxiliary digital multi-channel 2 )or binary channel) and monitoring and further interferometer the direction-finding fixing station system for.

The auxiliary digital 3 three function RF amplifier electric executing block diagram attached certain 4 is high; the low-end power is screwed on the rotary of the light schematic drawing (a group of electric a screen rotating switch and) of.

The auxiliary digital 5 is the power divider is 1: The 2) is distributor consists of image structure.

The auxiliary digital 6 is environment-friendly control and remote control power supply unit structure diagram.

The auxiliary digital 7 is the invention software control system current charts.

The position 1 is the large base interferometer the direction-finding antenna array (vertical polarization); 2nd, high; the low-end power is screwed on the switch; 3rd, power divider; 4th, wherein the first antenna band; 5th, wherein a RF amplifiers; 6th, binary channel direction-finding receiver; 7th, digital intermediate frequency discriminator; 8th, monitoring direction-finding processing unit; 9th, wherein the industrial computer control, 10 and low-end vertical polarization antenna monitoring and 11 high-end vertical polarization antenna device,

12 Is the second antenna selector, 13 is monitoring receiver, 14 of the battery or commercial power, 15 is UPS, 16 is environment-friendly control and remote control power supply unit, 17 is a collector, 18 is a network, 19 is a lightning rod, 20) are five vertical polarization passive the direction-finding antenna array: MHz-3000MHz 1350, 21) are five vertical polarization passive the direction-finding antenna array: MHz-1350MHz 500, 22) are five vertical polarization passive the direction-finding antenna array: 160MHz-500MHz, 23) are five vertical polarization passive the direction-finding antenna array: 20MHz-160MHz. , R, R2, 113 is the resistor and C, C2, <: 3rd, Capacitor, D;. . Is a diode and Vl-V7 of the voltage of monitoring direction-finding controller; andAutomatic control system current image a monitoring direction-finding service device (d) pre-etServer the direction-finding and current monitoring direction-finding service device (dfNetServer) motion switch.

detailed description of illustrated embodiments

Said auxiliary l shape, wherein structure, high; the low-end power is rotary-screen switch 2, power distributor 3, first antenna band 4, wherein a RF amplifier 5, binary channel direction-finding receiver 6, the intermediate frequency discriminator 7, monitoring direction-finding processing unit 8, wherein the industrial computer control 9, low-end vertical polarization antenna monitoring 10, high-end vertical polarization antenna monitoring 11, the band antenna 12, wherein receiver 13, battery or commercial power 14, UPS15 and environment control and remote control power supply unit 16, concentrator 17, comprising a network of large vertical polarization interferometer the direction-finding antenna array shape 18.

Among them connecting relation: A large vertical polarization interferometer the direction-finding antenna array, 1), a power low-end is rotary-screen switch 2, first antenna band 4 and a function RF amplifier 5, binary channel direction-finding receiver 6 serially connected; Corrosion-resistant, low-end power is rotary-screen switch 2 output/input terminal and power distributor 3/input terminals; jointing The binary channel direction-finding receiver 6 first end and digital intermediate frequency discriminator 7 input end of the joint; the binary channel direction-finding and 6 second and power distributor 3 first input end, jointDigital intermediate frequency discriminator 7 and industrial computer control 9 first input end of the joint; the industrial computer control 9 first, second, third; and is connected with the binary channel direction-finding and 6 second input end and monitoring direction-finding processing unit 8 input end and receiving monitoring 13 first input end of the first 17 input end of the joint; The monitoring direction-finding processing unit 8 first, second, third, fourth, fifth, and is connected with the power divider 3 second input end and first antenna band 4 second input end; the three function RF amplifier 5 second input end and binary channel direction-finding receiver 6 third input end and second antenna band 12 third input end and receiving monitoring 13

The second input end of the joint; Low-end vertical polarization antenna monitoring 10, high-end vertical polarization antenna monitoring 11 output connected with the second antenna band 12 first, second input end of the joint; The second antenna band 12 and receiving monitoring 13 third input end, jointBattery or commercial power 14 and UPS15 series, the first UPS15 and industrial computer control 9 second input end of the joint; the second UPS15 and environment control and remote control power supply unit 16 butt, environment control and remote control power supply unit and 16 and 17 of the second input end and network 18 input end in series, environment control and remote control power supply unit 16 first output end industrial computer control 9 third input ends.

The perpendicular polarization and base interferometer the direction-finding antenna array (1), is divided into four slots (corresponding to the four frequency bands), which the line; each of the is paid the passive vertical dipole antenna group of total height array, a full the direction-finding antenna array (20) antenna, oscillator is received signal. At lower layer is 20MHz to the 160MHz wave band; the most array large-diameter 3.0 m, the dipole unit layer is 1.8 m; The is 160MHz to a SPL-one-fifth wave band; the diameter array and bent length with reduced; Uplink a SPL-one-fifth is 1350 mm short wave z; and array is bent and further length of; The uppermost layer is 1350MHz to the 3000MHz wave band; the diameter array and bent length of a. The impedance of 50Q.

Corrosion-resistant, low-end power is screwed on the switching 2) is divided into low-end power a screwed on the switch unit and high-end battery according to the frequency bands is screwed on the switch device. Comprising a monitoring direction-finding processor 8 and a power supply.

And low-end power is screwed on the switch unit (is ANS) 017L the work frequency of 20MHz to 1350MHz, which is equal to the high-frequency electronic switch, comprising a 15 signal input ends, 2 signal output ends and l control/power supply ports 1, self-correcting signal input end and 1 self-correcting signal output end; the controlled of manufacturing a connection with two groups of the signal channels (is divided into a main circuit and an is) and self-correcting signal channel.

The electric high-end is screwed on the switch unit operating frequency is 1350 short or equal to 3000MHz, the model of ANS018L, which is also a high-frequency electronic switch, comprising a 5 signal input ends, 2 signal output ends and l control/power supply ports and l self-correcting signal input end, which is controlled by with a connection with two groups of the signal channels (is divided into a main circuit and an is) and self-correcting signal channel. The circuit for working: The control voltage V1 and V2 add the electric, wherein the conducting Dw, relate is fixed to A node of the removal vertical polarization further interferometer the direction-finding antenna array signal 1, wherein the control voltage V2 and V3 add the power; when diode D divination AN electric, a self-correcting signal is connected to A node, the control voltage V4 and V5 add the electric, wherein the conducting Dw, node A a signal output from the main loop; The control voltage V6 and V7 add the power; the diode (01 1-12 breakovers, node A signal of a assisting Embankment Shuchu (shown and a digital 4);

Said auxiliary digital 5, power distributor 3, ALL comprising: 050L1 Operating 2: 1 5 Power divider and ALL 051L 1: 5 Power distributor two parts. ALL 050L power divider is used for frequency low-end, comprising a a self-correcting signal of the receiver generating first two groups; one loop is divided into 5 paths, introduces the electric low-end a screwed on the switch, a 20MHz to 160MHz wave band or 160MHz to 500 short z conductor or SPL-one-fifth to 1350MHz wave band for performing a self-correcting by using; In addition self-correcting signal transmitted to the high-end power is screwed on the switch-box, and is l-shaped: a 5 The power distributor, energy to the high-frequency power a screwed on the switch unit is provided with the high frequency band self-correcting system.

The first antenna band 4 is the 4: The 2 selectors, a a screwed on the switch and low-end battery from high-end power is screwed on a switched in output 2 pairs of primary and secondary signals is used 1 double primary-and-secondary signal output. Comprising a 4 input end, 2 and 1 control/power supply terminal.

Three function RF amplifier 5, composed of two amplifiers; the work frequency of 20MHz to 3000MHz, comprising an enhanced, nonstop, the attenuation three pair of functions, and is according to leads circuit by setting software. Two amplifiers relative to coming from band antenna 1 the primary and secondary loop signal deal with. Solution is l-shaped respectively control/power supply end, l input ends and two l.

The three function amplifiers (e.g shape. 3) and first high relay, the second high-frequency relay, the amplifying circuit, a damping a power supply, a high relay (model RF303-12), the amplifier tube in amplifier (model ERA-51SM). the +12 power supply is added to a software control on which the first high relay and second high-frequency relay. When the first relay high-frequency switch power; and when the second relay high-frequency without add the power input, a signal amplifying circuit for obtaining linear, the second passes through the high-frequency relay and lower nonstop to some output. Is an enhanced a. When the first high relay without add the battery; and when the second relay high-frequency with, power input signal after the first frequency is nonstop part and second relay high-frequency attenuation circuit, wherein the attenuation output. Is an attenuation of. When the first high relay and second relay high-frequency connected with the add, power input signal of the first high relay and second high-frequency relay are nonstop to some output.

Is a top nonstop to a. Therefore the amplifier with the top nonstop, and attenuation of three functions.

The binary channel direction-finding receiver 6, wherein in the frequency changing demodulation, and decoding to two groups of primary and secondary signals of input,

The output comprises a signal phase amplitude and intermediate frequency signal; and digital intermediate frequency discriminator 7 and processing. The embodiment are Japan Anritsu Company RR509A binary channel direction-finding receiver, wherein two channels share a local oscillating source, a phase uniformity of good, wherein a winding has the interferometer the direction-finding system high-precision, system and attenuator is very high stably, reliable.

Digital intermediate frequency discriminator 7 the functions to detect phase information in a signal vector voltage, wherein the model MC1596L), phase inverter (with two pair of plastic of the analogue multiplier: PSCQ-2-0. 455 And PSCQ-2-21.4, which is connected to the 455KHz intermediate-frequency and 21.4MHz intermediate frequency signal deals with) and an amplifying circuit (amplifier tube is C157C) and that a coming from receiver the intermediate-frequency signal deals, and output signal phase information. Converting digital signal to provide with a (an A/D conversion) and a computer.

Monitoring direction-finding processor (8) is DFC 050L) is the system part of the control drive unit and direct current power supply unit. The processor through a serial port and control industrial computer (9 ADVANTECH IPC-610 communication), receiving the control order of computer, and high; the low-end power is screwed on the switch and first antenna band; a RF amplifier and binary channel direction-finding receiver and controlled by the second band antenna and monitoring receiver to the power divider, so the intermediate-voltage software device filled with monitoring and direction-finding to the radio signals.

Control industrial computer (9 ADVANTECH IPC-610) and application software's carrier, except for performing device comprises a memory and printing) evening divination, further - dealt with a magnetism data, voice frequencies, video, comprising a time complexity statistic algorithm to the data information of mass collector (for example autocorrelation algorithm, detecting phase algorithm, the HILBERT conversion and FFT algorithm), wherein obtaining signal of. Comprising a travelling rate is head, large capacity and stable, reliable of LF2407 and earthquakes of the performance and the characteristic.

The low-end vertical polarization antenna monitoring 10 and high-end vertical polarization antenna monitoring 11 is tropism the passive bipyramid antenna with an improper method in horizontal plane; the low-end operating frequency is 20 circuit or equal to 700MHz, the high-end operating frequency is SPL-one-fifth to 3000MHz. Output impedance: 50Q interface, and is an N-TYPE socket. The low-end antenna is: Diameter; 1732mmHigh 1223mm. The high-end antenna is: Diameter; 250mm

370) Is.

The second antenna band 12, and a selector 2:1, wherein the coming from the low-end vertical polarization antenna monitoring 10 and high-end vertical polarization antenna monitoring 11 the signals and, and selects 1) for monitoring signals to the remote monitoring receiver (13) is RR511A). Comprising a 2 signal input end, 1 signal output end and 1 control terminal.

Monitoring signals of receiving monitoring 13 pairs of input end of the variable frequency demodulation, and decoding, wherein a frequency signal, amplitude, frequency offset, moudulation times, bandwidth layer, and spectrum image and information, wherein via an RS232 interface communication computer, performing monitoring measurement to different frequency domain, wherein the area and time domain signal. The embodiment are Japan Anritsu Company RR511A single-channel monitoring receiver.

The battery or commercial power 14 a commercial power 220VAC and battery unit (8) 12V100AH.

UPS 15 is the battery, is APC 2200VA the linear.

The comparison attached digital 6, environment control and remote control power supply unit 16, wherein the is held control command equal to the position to control system and device for high and low power, computer and air conditioner) is a remote control module, the data collecting unit (AD collecting for field 220VAC and reading apparatus high and low power direct-current voltage and data equal), the network video server (is DS-6001HC, for transmitting the field image), a colourful camera (is Samsung 101), a voltage sensor (is DYH28-14A, a 220V alternating current input of the v alternating current), a humidity sensor (is JWSL-3W), the cable sleeve (is BT-168A), an infrared an alarm (modelFor BT-922R) and part that. (17) Connected with the NJ45 interface and concentrators, a concentrators and a/wireless network transmission 18 butt. The control centre software (DESCO DF7.0) are function, and a on the remote controller is the remote fixing, and receiving control centre indicating for monitoring, display, sound recording, the direction-finding or the connection element comprises a switch machine, and monitoring and direction-finding result feedback control centre. In addition, for monitoring to the working state; the connection device and the environment of remote, and energy to the control centre end and environment and working state and monitoring and data by the camera the remote monitoring's image via the transmission line monitoring. A with used comprises (burglary, fire-alarm equal) in report to with promptly.