CN2305681Y - Digit signal process terminal device for gun speed measuring radar - Google Patents
Digit signal process terminal device for gun speed measuring radar Download PDFInfo
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- CN2305681Y CN2305681Y CN 97219474 CN97219474U CN2305681Y CN 2305681 Y CN2305681 Y CN 2305681Y CN 97219474 CN97219474 CN 97219474 CN 97219474 U CN97219474 U CN 97219474U CN 2305681 Y CN2305681 Y CN 2305681Y
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Abstract
The utility model discloses a digit signal processing terminal device for a gun speed measuring radar, which is composed of a band-pass amplifier, a frequency mixer, a local oscillator, a low-pass filter, an A/D converter, a signal processor, a logic controller, a trigger circuit, a keyboard, a display, etc. The logic controller is used for carrying out the modulating spectrum analysis of innovation-variable narrow-band digital so that the utility model realizes real-time data transmission and real-time track and measurement and meets the multi-aim measuring requirement. The utility model is suitable for measuring the speed of special shells in wide range, and has the characteristics of high gain, far operating distance, miniaturization, strong anti-interference performance, convenient operation and use under adverse environment, etc.
Description
The utility model relates to signal and the data processing equipment in the cannon velocity radar, and signal such as the trajectory that is specially adapted to extraterrestrial target is measured, speed and parameter deal with end device.
Present domestic existing velocity radar, all adopt analog filter to analyze to signal and parameter processing that extraterrestrial target is measured in time domain, thisly carry out its shortcoming of method for processing signals with analog filter and can not distinguish analysis Multiple Target Signals, can not real time data processing, the requirement that can not satisfy that rapid-fire weapon shooting is tested the speed and extraordinary bullet is tested the speed, and the device gain is low, operating distance is short, resolving power is low, its volume of equipment that adopts analog filter to make is big, parts are many, manipulate inconvenience.
The purpose of this utility model is to avoid the weak point in the above-mentioned background technology and provides a kind of can handle in real time and transmit data, satisfy the multi-target measurement requirement, can be suitable for the extraordinary bullet wide cannon velocity radar digital signal processing end device of scope that tests the speed, and the utility model also has that high-gain, operating distance are far away, miniaturization, and can be adapted at that sea, land, big gun are carried, several working ways such as vehicle-mounted and under rugged surroundings, using, easy for operation.
The purpose of this utility model is achieved in that it is made up of bandpass amplifier 1, frequency mixer 2, local oscillator 3, low-pass filter 4, A/D converter 5, signal processor 6, logic controller 7, trigger circuit 8, keyboard 9, display 10, interface circuit 11, power supply 12.
Wherein bandpass amplifier 1 goes into to hold the external equipment tuner, going out end goes into to hold 1 to be connected with frequency mixer 2, local oscillator 3 goes out end and goes into to hold 2 to be connected with frequency mixer 2, frequency mixer 2 goes out end 3 serial connection low-pass filters 4 backs and goes into to hold 1 to be connected with A/D converter 5, A/D converter 5 outbound ports 3 are connected with signal processor 6 inbound ports 4 by address data bus, logic controller 7 outbound ports 1 are connected with low-pass filter 4 inbound ports 3 by address data bus, outbound port 2 is connected with local oscillator 3 inbound ports by address data bus, going out inbound port 3 goes out inbound port 2 by address data bus and keyboard 9 and is connected, outbound port 4 is connected with display 10 inbound ports by address data bus, going out inbound port 5 goes out inbound port by address data bus with interface circuit 11 and is connected, going out inbound port 6 is connected by address data bus and signal processor 6 discrepancy port ones, signal processor 6 is gone into end 2 and is gone out to hold 3 to be connected by interrupting the application line with trigger circuit 8, going into end 3 goes out to hold 3 to be connected by reset line with keyboard 9, keyboard 9 goes out end 1 and goes into to hold 2 to be connected by manually starting line with trigger circuit 8, keyboard 9 outbound ports 4 are connected with signal processor 6 inbound ports 4 by data input bus (DIB), trigger circuit 8 are gone into end 1 external infrared starter, interface circuit 11 output external printers, power supply 12 is gone into end 1 external AC power supply, go into end 2 external direct current power supplies, go out end+V2,-V2 voltage end is gone into end with bandpass amplifier 1 power supply and is connected, go out end+V1, each parts power end of-V1 voltage end and other is connected.
The purpose of this utility model can also reach by following measure:
The utility model is compared background technology following advantage:
1. the utility model adopts signal processor 6, logic controller 7 newly to cease the analysis of variable narrow-band digital modulation spectrum, this real-time novel signal Processing resolution is improved greatly, satisfy and handle the transmission data demand in real time, and can adapt to the wide range of frequencies variation, satisfy multi-target measurement and be suitable for the requirement that extraordinary bullet tests the speed, can carry out real-time follow-up and prediction simultaneously.
2. the utility model adopts large-scale digital ic to make, especially adopt integrated digital signal processor 6, realize miniaturization of the present utility model, improved reliability, can satisfy be adapted at that sea, land, big gun are carried, several working ways such as vehicle-mounted and under rugged surroundings, using.
3. the utility model adopts signal processor 6 to make signal spectrum to strengthen with frequency and accurately extract, improved the operating distance of antijamming capability and radar, improved measuring accuracy and accuracy.
4. the utility model adopts digital integrated circuit to make, therefore not only miniaturization, and also simple in structure, easy for operation.
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is the utility model functional-block diagram.
Fig. 2 is the electrical schematic diagram of the utility model logic controller 7.
With reference to Fig. 1, Fig. 2, the utility model is made up of band communication amplifier 1, frequency mixer 2, local oscillator 3, low-pass filter 4, A/D converter 5, signal processor 6, logic controller 7, trigger circuit 8, keyboard 9, display 10, interface circuit 11, power supply 12.Wherein bandpass amplifier 1 goes into to hold the external equipment tuner, the zero intermediate frequency signals f of tuner input
d, go out end and go into to hold 1 to be connected with frequency mixer 2.Local oscillator 3 goes out to hold with frequency mixer 2 goes into to hold 2 to be connected, and frequency mixer 2 goes out end 3 serial connection low-pass filters 4 backs and goes into to hold 1 to be connected with A/D converter 5, and A/D converter 5 outbound ports 3 are connected with signal processor 6 inbound ports 4 by address data bus.Its effect of bandpass amplifier 1 is imported tested various bullet echo signal to tuner and is amplified, and carries out bandpass filtering simultaneously, the signal input mixer 2 with certain amplitude and certain frequency scope is provided, and makes bandpass amplifier 1 and frequency mixer 2 reach coupling.Frequency mixer 2 its effects are carried out mixing to the local oscillation signal of the measured signal of tuner input and local oscillator 3 inputs, take out difference frequency, and preprocessed signal is modulated to low-frequency range, carry out signal Processing.Its effect of local oscillator 3 produces a local oscillation signal, and reaches with frequency mixer 2 and mate, and the signal of local oscillator 3 outputs controlled by logic controller 7, and local oscillator 3 is carried out the real-time frequency guiding.Low-pass filter 4 its effects are carried out low-pass filtering with mixed frequency signal, improve signal quality, prevent that sampled signal from obscuring, and carry out the real-time frequency guiding by logic controller 7.A/D converter 5 its effects become digital signal to analog signal conversion, and digital signal input signal processor 6 carried out signal and data processing, and A/D converter 5 makes signal processor 6 finish the resolution in real time of real time signal processing, multiple goal and real time data processing and monitoring in real time by logic controller 7 controls carrying out live signal collection, monitoring in real time.Embodiment bandpass amplifier 1 adopts commercially available F118 type production of integrated circuits.Frequency mixer 2 adopts commercially available VJH8 type production of integrated circuits.Local oscillator 3 adopts commercially available AD7008 type production of integrated circuits.Low-pass filter 4 adopts commercially available SB3928B type production of integrated circuits.A/D converter adopts commercially available AD779 type production of integrated circuits.Signal processor 6 adopts commercially available GKCTMS320C31 type production of integrated circuits.
The utility model logic controller 7 is by address extension device 13, data extender 14, phase inverter 15,16,17, latch 18, trigger 19, latch 20, driver 21 is formed, its electric principle connection line is as follows: signal processor 6 outbound ports 1 are by parallel outlet data bus 2 and address extension device 13, each inbound port 1 of data extender 14 also connects, address extension device 13 outbound ports 2 are connected with local oscillator 3 inbound ports 2 by the extended address line, data extender 14 outbound ports 2 by the growth data bus respectively with latch 18,20 inbound ports 1, low-pass filter 4 inbound ports 3, local oscillator 3 inbound ports 1 also connect, latch 18 outbound ports 2 are connected with keyboard 9 inbound ports 2 by data bus, latch 20 outbound ports 2 are connected with display 10 inbound ports by data bus serial connection driver 21 backs, interface circuit 11 gateway ends 1,2 respectively by parallel outlet bus 2, parallel entry bus 2 is gone into outbound port 5 with signal processor 6,6 connect, output in signal processor 6 outbound ports 1 allows control line to go into to hold 2 to be connected with A/D converter 5, sheet selects control line serial connection phase inverter 16 backs to go into to hold 3 to be connected with local oscillator 3, output allows control line to go into to hold 5 to be connected with latch 18, input allows line, output allows line to go into end 3 with interface circuit 11 respectively, 4 connect, signal processor 6 goes out end 2 and is connected in series phase inverter 15 respectively by clock line, 17 backs and A/D converter 5, the going into end 4 and connect of local oscillator 3, keyboard 9 goes out to hold 1 by interrupting going into to hold 3 to be connected with signal processor 6 behind the application line serial connection trigger 19, sheet line traffic control line in address extension device 13 outbound ports 2 is gone into end 1 with A/D converter 5 and is connected, the input line of response is gone into end 1 with low-pass filter 4 and is connected, two output allow line respectively with latch 20, driver 21 is gone into end 5 and is connect, ground connection behind keyboard 9 outbound ports, 4 output parallel entry data buss and the connecting resistance R1, connect power supply 12 behind latch 18 outbound port output data bus and the connecting resistance R2 and go out end+V1 voltage end, address extension device 13, data extender 14, latch 18, trigger 19, latch 20, driver 21 respectively goes out end 3 and is connected with power supply+V1 voltage end, respectively going out end 4 is connected with the ground end.Extended address is carried out in 13 its effects of address extension device, by sheet selected control system line traffic control A/D converter 5 duties, by input line of response control low-pass filter 4 duties, by the duty of extended address line traffic control local oscillator 3, allow line through latch 20, driver 21 control displays 10 duties by output.Growth data is carried out in 14 its effects of data extender, control the duty of low-pass filter 4, local oscillator 3 respectively by the growth data line, carry out data transmission, carry out data transmission through latch 18 and latch 20,21 pairs of keyboards 9 of driver, display 10 by the growth data line.Phase inverter 15,17 effects make clock signal carry out the clock coupling by clock line and local oscillator 3, A/D converter 5, and it is anti-phase that phase inverter 16 selects the control pair control signal to carry out by sheet.Latch 18 its effects are controlled the data output of keyboard 9 and are latched.Trigger 19 its effects provide one to interrupt the application signal for signal processor 6 to the response of keyboard 9 by interrupting the application line.The data output of 20 pairs of displays 10 of latch is controlled and is latched, and by 10 work of driver 21 driving displays.The utility model resistance R 1 is attempted by on the output data line of keyboard 9, and its effect prevents power supply short circuit.Resistance R 2 is attempted by on the input data line of keyboard 9, is used for lift level.Embodiment address extension device 13 adopts commercially available MC4514 type production of integrated circuits, and data extender 14 adopts commercially available 74HC574 type production of integrated circuits, and phase inverter 15,16,17 adopts commercially available 74LS14 type production of integrated circuits.Latch 18,20 adopts commercially available 74HC574 type integrated package to make.Trigger 19 adopts commercially available MC14528 type integrated package to make.Driver 21 adopts commercially available LD32 type integrated package to make, and resistance R 1, R2 all adopt commercially available commonplace components to make.
The utility model signal processor 6 is gone into end 2 and is gone out to hold 3 to be connected by interrupting the application line with trigger circuit 8, signal processor 6 is gone into end 3 and is gone out to hold 3 to be connected by reset line with keyboard 9, keyboard 9 goes out end 1 and goes into to hold 2 to be connected by manually starting line with trigger circuit 8, and keyboard 9 outbound ports 4 are connected with signal processor 6 inbound ports 4 by data input bus (DIB).Trigger circuit 8 go into to hold external infrared starter, interface circuit 11 output external printers, power supply 12 go into end 1 external AC power supply, go into end 2 external direct current power supplies, go out end+V2 ,-V2 voltage end and bandpass amplifier 1 power supply go into to hold to be connected, to go out end+V1 ,-each parts power end of V1 voltage end and other is connected.Trigger circuit 8 provide infrared startup or manually start two kinds of Starting mode, and as the system's moment at zero point signal, embodiment adopts 74LS122 type integrated package to make.Keyboard 9 its effect input operation parameters realize various real-time detecting operation programs, and embodiment adopts commercially available PVC profile plate self-control to form.Display 10 its effects show real-time measurement result, parameter and the state of detecting, and embodiment adopts commercially available YXY6030 type LCD to make.Interface circuit 11 its effects detect digital signal to the utility model input and output, so that external printer is printed the detection signal record, embodiment adopts fair 74HC574,74HC541 type integrated package to make.Power supply 12 its effects provide direct-current working volts at different levels, and embodiment adopts the self-control of general direct supply circuit to form, and its input AC end can external 90 to 135 volts alternating voltages or 180 to 270 volts alternating voltages, and importing that DC holds can external positive 18 to 36 volts of DC voltage.Its export four groups of DC voltage+V1 end output+5V voltage ,-V1 end output-5V voltage ,+V2 hold output+12V voltage ,-V2 holds output-12V voltage.
The concise and to the point principle of work of the utility model is as follows: the zero intermediate frequency signals Fd from tuner input amplifies back input mixer 2 through bandpass amplifier 1, the Doppler frequency signal F that the preset parameter of local oscillator 3 by keyboard 9 preset by the control generation of logic controller 7
D is pre-In frequency mixer 2, subtract each other difference frequency signal △ Fd, the clock signal Fs that this signal adopts logic controller 7 to provide in A/D converter 5 after low-pass filter 4 amplification filtering carries out signal sampling, continuous analog signal is become discrete digital signal, in this digital signal input signal processor 6, signal processor 6 newly ceases variable narrowband modulation analysis of spectrum with the digital signal of input, and carry out frequency spectrum and strengthen, signal Processing such as multiple goal identification, obtain the frequency values of Doppler signal Fd, detect and Frequency Estimation according to the frequency values that obtains by signal processor 6, carrying out frequency according to the Frequency Estimation result by local oscillator 3 controls in real time, Doppler frequency signal Fd to next sampling period input carries out difference frequency, the work of beginning next round signal Processing realizes real-time frequency guiding and target following task.Signal processor 6 is with one group of Doppler signal f
dThe frequency values result pick open country, match, extrapolation and obtain tested bullet target velocity, this target velocity is by logic controller 7 controls, real-time Transmission to display shows, can be transferred to interface circuit 11 simultaneously and export or print.
The utility model mounting structure is as follows: the utility model is except that keyboard 9, display 10, power supply 12, it is in 120 * 200 millimeters the printed board that the components and parts of remaining circuit parts are installed in 2 block lengths * wide, that the control of the power module of power supply 12, power interface is installed in is long * wide be in 40 * 100 millimeters the printed board, all circuit are pressed Fig. 1, Fig. 2 connection line, adopt shielded cable to connect between each plate of circuit board, for preventing to disturb each wiring board to adopt the shielding mounting structure, screen layer adopts controls the circuit structure of heating, and device can be worked under rugged surroundings.Then printed board, to be installed in a long * wide * height together with screen layer be that cabinet adopts the aluminium sheet material machining of 3 millimeters thick to form in 320 * 260 * 56 millimeters the cabinet.The cable socket of keyboard 9, display 10, the input cable socket of tuner input bandpass amplifier 1, infrared startup input trigger circuit 8, interface socket and the installation power switch and the pilot lamp of interface circuit 11 output printers are installed on case front panel, the installation power supply exchanges the AC end on the rear panel of cabinet, direct current DC holds input socket, whole cabinet adopts the waterproof measure structure, can be fit to marine, land, big gun carries, multiple occasion work such as vehicle-mounted.
Claims (2)
1. cannon velocity radar digital signal processing terminal installation, it is by bandpass amplifier (1), frequency mixer (2), local oscillator (3), low-pass filter (4), A/D converter (5), signal processor (6), trigger circuit (8), keyboard (9), display (10), interface circuit (11), power supply (12) is formed, it is characterized in that logic controller (7) is formed in addition, wherein bandpass amplifier (1) goes into to hold the external equipment tuner, going out end goes into to hold with frequency mixer (2) and is connected, local oscillator (3) goes out end and goes into to hold 2 to be connected with frequency mixer (2), frequency mixer (2) goes out end 3 serial connection low-pass filter (4) backs and goes into to hold 1 to be connected with A/D converter (5), A/D converter (5) outbound port 3 is connected with signal processor (6) inbound port 4 by address data bus, logic controller (7) outbound port 1 is connected with low-pass filter (4) inbound port 3 by address data bus, outbound port 2 is connected with local oscillator (3) inbound port by address data bus, going out inbound port 3 goes out inbound port 2 by address data bus with keyboard (9) and is connected, outbound port 4 is connected with display (10) inbound port by address data bus, going out inbound port 5 goes out inbound port by address data bus with interface circuit (11) and is connected, going out inbound port 6 is connected by address data bus and signal processor (6) discrepancy port one, signal processor (6) is gone into end 2 and is gone out to hold 3 to be connected by interrupting the application line with trigger circuit (8), going into end 3 goes out to hold 3 to be connected by reset line and keyboard (9), keyboard 9 goes out end 1 and goes into to hold 2 to be connected by manually starting line with trigger circuit (8), keyboard (9) outbound port 4 is connected with signal processor (6) inbound port 4 by data input bus (DIB), trigger circuit (8) are gone into end 1 external infrared starter, interface circuit (11) output external printer, power supply (12) is gone into end 1 external AC power supply, go into end 2 external direct current power supplies, go out end+V2,-V2 voltage end is gone into end with bandpass amplifier (1) power supply and is connected, go out end+V1, each parts power end of-V1 voltage end and other is connected.
2. cannon velocity radar digital signal processing terminal installation according to claim 1, it is characterized in that logic controller (7) is by address extension device (13), data extender (14), phase inverter (15), (16), (17), latch (18), trigger (19), latch (20), driver (21) is formed, wherein signal processor (6) outbound port 1 is by parallel outlet data bus 2 and address extension device (13), each inbound port 1 of data extender (14) also connects, address extension device (13) outbound port 2 is connected with local oscillator (3) inbound port 2 by the extended address line, data extender (14) outbound port 2 by the growth data bus respectively with latch (18), (20) inbound port 1, low-pass filter (4) inbound port 3, local oscillator (3) inbound port 1 also connects, latch (18) outbound port 2 is connected with keyboard (9) inbound port 2 by data bus, latch (20) outbound port 2 is connected with display (10) inbound port by data bus serial connection driver (21) back, interface circuit (11) gateway end 1,2 respectively by parallel outlet bus 2, parallel entry bus 2 is gone into outbound port 5 with signal processor (6), 6 connect, output in signal processor (6) outbound port 1 allows control line and A/D converter (5) to go into to hold 2 to be connected, sheet selects control line serial connection phase inverter (16) back and local oscillator (3) to go into to hold 3 to be connected, output allows control line and latch (18) to go into to hold 5 to be connected, input allows line, output allows line to go into end 3 with interface circuit (11) respectively, 4 connect, signal processor (6) goes out end 2 and is connected in series phase inverter (15) respectively by clock line, (17) back and A/D converter (5), the going into end 4 and connect of local oscillator (3), keyboard (9) goes out to hold 1 by interrupting applying for that line is connected in series trigger (19) back and signal processor (6) goes into to hold 3 to be connected, sheet line traffic control line in address extension device (13) outbound port 2 is gone into end 1 with A/D converter (5) and is connected, the input line of response is gone into end 1 with low-pass filter (4) and is connected, two output allow line respectively with latch (20), driver (21) is gone into end 5 and is connect, ground connection behind keyboard (9) outbound port 4 output parallel entry data buss and the connecting resistance R1, connect power supply 12 behind latch (18) outbound port 2 output data bus and the connecting resistance R2 and go out end+V1 voltage end, address extension device (13), data extender (14), latch (18), trigger (19), latch (20), driver (21) respectively goes out end 3 and is connected with power supply+V1 voltage end, respectively going out end 4 is connected with the ground end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97219474 CN2305681Y (en) | 1997-07-03 | 1997-07-03 | Digit signal process terminal device for gun speed measuring radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97219474 CN2305681Y (en) | 1997-07-03 | 1997-07-03 | Digit signal process terminal device for gun speed measuring radar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2305681Y true CN2305681Y (en) | 1999-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97219474 Expired - Fee Related CN2305681Y (en) | 1997-07-03 | 1997-07-03 | Digit signal process terminal device for gun speed measuring radar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2305681Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1981207B (en) * | 2004-07-02 | 2010-05-05 | 互动体育竞赛有限公司 | A method and an apparatus for determining a deviation between an actual direction of a launched projectile and a predetermined direction |
| CN101872013A (en) * | 2010-06-21 | 2010-10-27 | 河海大学 | Method for generating signal of ballistic trajectory answer signal source in digital domain |
| CN106154258A (en) * | 2016-09-05 | 2016-11-23 | 南京理工大学 | A kind of based on outer trajectory millimeter speed-measuring radar real time signal processing system and method |
-
1997
- 1997-07-03 CN CN 97219474 patent/CN2305681Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1981207B (en) * | 2004-07-02 | 2010-05-05 | 互动体育竞赛有限公司 | A method and an apparatus for determining a deviation between an actual direction of a launched projectile and a predetermined direction |
| CN101872013A (en) * | 2010-06-21 | 2010-10-27 | 河海大学 | Method for generating signal of ballistic trajectory answer signal source in digital domain |
| CN101872013B (en) * | 2010-06-21 | 2013-04-10 | 河海大学 | Method for generating signal of ballistic trajectory answer signal source in digital domain |
| CN106154258A (en) * | 2016-09-05 | 2016-11-23 | 南京理工大学 | A kind of based on outer trajectory millimeter speed-measuring radar real time signal processing system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |