CN109828247B - Method and device for simulating target signal in near zone of code phase modulation pulse Doppler fuze - Google Patents
Method and device for simulating target signal in near zone of code phase modulation pulse Doppler fuze Download PDFInfo
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- CN109828247B CN109828247B CN201811555261.4A CN201811555261A CN109828247B CN 109828247 B CN109828247 B CN 109828247B CN 201811555261 A CN201811555261 A CN 201811555261A CN 109828247 B CN109828247 B CN 109828247B
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Abstract
The invention provides a method and a device for simulating a target signal in a near zone of a code phase modulation pulse Doppler fuze, wherein the method comprises the following steps: receiving a transmitting signal and a coding signal of the code phase modulation pulse Doppler fuze, and distributing the transmitting signal into two signal channels for processing; in the first signal path: detecting the transmitting signal to obtain a pulse period, and respectively calculating the cross-period compensation time and the phase coding compensation signal; in the second signal path: performing frequency modulation and delay processing on the transmitting signal to obtain a cross-period signal, and performing phase inversion on the cross-period signal to obtain a phase compensation signal; and performing power control on the phase compensation signal to obtain a required near-zone target analog signal, and returning the near-zone target analog signal to the code phase modulation pulse Doppler fuze to complete near-zone target simulation. The invention can simulate the near-zone target signal of the code phase modulation pulse Doppler fuze and realize the comprehensive detection of the target detection performance.
Description
Technical Field
The invention relates to the technical field of fuze target simulation, in particular to a code phase modulation pulse Doppler fuze near zone target signal simulation method and device.
Background
At present, the performance of the fuze directly influences the damage effect of the weapon system on the target, and in the development and production process, a target signal simulation device is generally required to simulate target signals in different crossing processes so as to test the target detection capability of the fuze. The fuze target signal simulation device is similar to the radar signal simulation device, is a product of combining a target simulation technology and a radar technology, and realizes various functions by simulating a target echo signal. There have been a great deal of reports on the research in this field abroad, and many achievements have been made in the related field in the last 10 years in China. However, the conventional fuze target signal simulation device cannot simulate the near-zone target signal due to the limitation of the working system and the signal processing speed. With the wide application of the code phase modulation pulse Doppler system in the fuze field, the performance of the near area is continuously improved, and the contradiction is increasingly prominent.
Disclosure of Invention
In view of the above, the invention provides a method and a device for simulating a code phase modulation pulse Doppler fuze near zone target signal, which aim to solve the problem that the traditional fuze target signal simulation device can not simulate near zone signals.
On the one hand, the invention provides a code phase modulation pulse Doppler fuze near zone target signal simulation method, which comprises the following steps:
receiving a transmitting signal and a coding signal of a code phase modulation pulse Doppler fuze, and distributing the transmitting signal into two signal channels for preset processing;
in the first signal path: detecting the transmitting signal to obtain a pulse period, and respectively calculating a period-crossing compensation time and a phase coding compensation signal according to the pulse period;
in the second signal path: sequentially carrying out Doppler frequency modulation and delay processing on the transmitting signal to obtain a cross-period signal, and carrying out phase inversion on the cross-period signal according to the phase coding compensation signal obtained in the first channel to obtain a phase compensation signal;
and performing power control corresponding to the template signal characteristics required to be simulated on the phase compensation signal to obtain a required near-zone target simulation signal, and returning the near-zone target simulation signal to the code phase modulation pulse Doppler fuze to complete near-zone target simulation.
In the method for simulating the target signal in the near zone of the code phase modulation pulse Doppler fuze, the cross-period compensation time is obtained by subtracting the system fixed delay from the pulse period.
In the method for simulating the target signal in the near zone of the code phase modulation pulse Doppler fuze, the phase code compensation signal is obtained by exclusive-or of the code signal in the current period and the code signal in the next period according to the pulse period.
In the method for simulating the target signal in the near zone of the code phase modulation pulse Doppler fuze, the Doppler frequency modulation processing is required to be performed according to the characteristics of the target signal to be simulated when the transmitting signal is subjected to Doppler frequency modulation processing.
Further, in the above method for simulating the target signal in the near zone of the code phase modulation pulse doppler fuse, the delay processing includes: distance delay processing and cross-period delay processing.
In the method for simulating the target signal in the near zone of the code phase modulation pulse Doppler fuze, the transmitting signal is required to be processed according to the characteristics of the target signal to be simulated in the distance delay processing process.
In the method for simulating the target signal in the near zone of the code phase modulation pulse Doppler fuze, the signal in the current pulse period needs to be delayed to the preset position of the next pulse period according to the cross-period compensation time in the cross-period delay processing process.
On the other hand, the invention also provides a code phase modulation pulse Doppler fuze near zone target signal simulation device, which comprises: the device comprises a receiving unit, a synchronizing unit, a modulating unit, a delay unit, a phase control unit and a power control unit; wherein, the liquid crystal display device comprises a liquid crystal display device,
the receiving unit is used for receiving the transmitting signals of the code phase modulation pulse Doppler fuze and distributing the transmitting signals into two signal channels;
the synchronous unit is connected with the receiving unit and is used for receiving the coded signals given by the coded phase modulation pulse Doppler fuze, detecting one path of the transmitted signals output by the receiving unit at the same time to obtain pulse periods, and respectively calculating the cross-period compensation time and the phase coding compensation signals according to the pulse periods;
the modulation unit is connected with the receiving unit and is used for carrying out Doppler frequency modulation processing on the other path of the transmitting signal output by the receiving unit according to the characteristics of the target signal to be simulated and outputting the Doppler frequency modulation processing to the delay unit;
the delay unit is connected with the modulation unit, and is used for carrying out distance delay and cycle-crossing delay processing on the signal output by the modulation unit and outputting the signal to the phase control unit;
the phase control unit is connected with the delay unit and is used for carrying out phase inversion on the signal output by the delay unit according to the phase coding compensation signal and outputting the signal to the power control unit;
the power control unit is used for performing power control corresponding to the template signal characteristics required to be simulated on the signals output by the phase control unit, outputting the signals to the code phase modulation pulse Doppler fuze and completing near-zone target simulation.
In the code phase modulation pulse Doppler fuze near zone target signal simulation device, the cross-period compensation time is obtained by subtracting a system fixed delay from the pulse period in the synchronization unit.
In the above-mentioned code phase modulation pulse doppler fuze near zone target signal simulation device, in the synchronization unit, the phase code compensation signal is obtained by xoring the code signal of the current period with the code signal of the next period according to the pulse period.
Compared with the prior art, the method and the device for simulating the near-zone target signal of the code phase modulation pulse Doppler fuze have the beneficial effects that the near-zone target signal of the code phase modulation pulse Doppler fuze can be simulated, and the comprehensive detection of the target detection performance of the code phase modulation pulse Doppler fuze is realized.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
fig. 1 is a flowchart of a method for simulating a target signal in a near zone of a code phase modulation pulse doppler fuse according to an embodiment of the present invention;
fig. 2 is a block diagram of a target signal simulation device in a near zone of a code phase modulation pulse doppler fuse according to an embodiment of the present invention.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1, a method for simulating a target signal in a near zone of a code phase modulation pulse doppler fuse according to an embodiment of the present invention includes the following steps:
receiving a transmitting signal and a coding signal of a code phase modulation pulse Doppler fuze, and distributing the transmitting signal into two signal channels for preset processing;
in the first signal path: and detecting the transmitting signal to obtain a pulse period, and respectively calculating the cross-period compensation time and the phase coding compensation signal according to the pulse period. The inter-period compensation time is obtained by subtracting a system fixed delay from the pulse period; the phase coding compensation signal is obtained by exclusive-or of the coding signal of the current period and the coding signal of the next period according to the pulse period.
In the second signal path: firstly, doppler frequency modulation and range delay processing corresponding to the characteristics of a target signal to be simulated are carried out on the transmitting signal; then, according to the cross-period compensation time obtained in the first signal channel, performing cross-period delay processing on the signal subjected to Doppler frequency modulation and distance delay processing, namely delaying the signal of the current pulse period to a preset position of the next pulse period to obtain a cross-period signal; and finally, carrying out phase inversion on the cross-period signal according to the phase coding compensation signal obtained in the first channel to obtain a phase compensation signal.
And carrying out corresponding power control on the phase compensation signal according to the characteristics of the template signal to be simulated to obtain a required near-zone target simulation signal, and returning the near-zone target simulation signal to the code phase modulation pulse Doppler fuze to complete near-zone target simulation.
Referring to fig. 2, an apparatus for simulating a target signal in a near zone of a code phase modulation pulse doppler fuse according to an embodiment of the present invention includes: receiving section 201, synchronization section 202, modulation section 203, delay section 204, phase control section 205, and power control section 206; wherein, the liquid crystal display device comprises a liquid crystal display device,
the receiving unit 201 is configured to receive a transmission signal of the code phase modulation pulse doppler fuse, and distribute the received transmission signal to two signal channels, where one channel is output to the synchronizing unit 202, and the other channel is output to the modulating unit 203, so that the synchronizing unit 202 and the modulating unit 203 perform different processes on the transmission signal synchronously.
The synchronization unit 202 is connected to the receiving unit 201 and is configured to receive the encoded signal given by the encoded phase modulated pulse doppler fuse. On the other hand, the method is used for detecting a path of transmitting signal output by the receiving unit 201, so as to obtain a pulse period of the transmitting signal, subtracting a system fixed delay from the obtained pulse period to obtain a cross-period compensation time, and outputting the result to the delay unit 204, so that the delay unit 204 can delay the result; meanwhile, according to the obtained pulse period, the encoded signal of the current period and the encoded signal of the next period are xored to obtain a phase encoding compensation signal, and the result is output to the delay unit 204 and the phase control unit 205 so as to facilitate the subsequent processing of the signals.
The modulating unit 203 is connected to the receiving unit 201, and when receiving another path of transmission signal output by the receiving unit 201, it automatically performs corresponding doppler frequency modulation processing on the received transmission signal according to the characteristics of the target signal to be simulated, and outputs the processed transmission signal to the delay unit 204, so that the delay unit 204 delays the transmission signal.
The delay unit 204 is respectively connected to the synchronization unit 202 and the modulation unit 203, and after receiving the transmission signal input by the modulation unit 203, performs corresponding distance delay processing on the transmission signal according to the characteristic of the target signal to be simulated, and performs further delay processing, that is, cross-period delay processing, on the transmission signal according to the cross-period compensation time input by the synchronization unit 202, so as to obtain a cross-period signal, and outputs the cross-period signal to the phase control unit 205, so that the phase control unit 205 performs phase processing on the cross-period signal.
The phase control unit 205 is respectively connected to the synchronization unit 202 and the delay unit 204, and when receiving the cross-period signal input by the delay unit 204, performs phase inversion on the cross-period signal according to the received phase encoding compensation signal input by the synchronization unit 202, and outputs the inverted signal to the power control unit 206.
The power control unit 206 is connected to the phase control unit 205, and after receiving the signal input by the phase control unit 205, performs corresponding power control on the signal according to the characteristic of the template signal to be simulated, and outputs the signal to the code phase modulation pulse doppler fuze, thereby completing near-zone target simulation.
It is apparent that the above implementation of the invention has the following advantages: the near zone target signal of the code phase modulation pulse Doppler fuze can be simulated, and the comprehensive detection of the target detection performance of the near zone target signal is realized.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (7)
1. A method for simulating a target signal in a near zone of a code phase modulation pulse Doppler fuze is characterized by comprising the following steps:
receiving a transmitting signal and a coding signal of a code phase modulation pulse Doppler fuze, and distributing the transmitting signal into two signal channels for preset processing;
in the first signal path: detecting the transmitting signal to obtain a pulse period, and respectively calculating a period-crossing compensation time and a phase coding compensation signal according to the pulse period;
in the second signal path: firstly, doppler frequency modulation and range delay processing corresponding to the characteristics of a target signal to be simulated are carried out on the transmitting signal; then, according to the cross-period compensation time obtained in the first signal channel, performing cross-period delay processing on the signal subjected to Doppler frequency modulation and distance delay processing to obtain a cross-period signal, and performing phase inversion on the cross-period signal according to the phase coding compensation signal obtained in the first signal channel to obtain a phase compensation signal;
and performing power control corresponding to the template signal characteristics required to be simulated on the phase compensation signal to obtain a required near-zone target simulation signal, and returning the near-zone target simulation signal to the code phase modulation pulse Doppler fuze to complete near-zone target simulation.
2. The method of claim 1, wherein the cross-period compensation time is obtained by subtracting a system fixed delay from the pulse period.
3. The method according to claim 1, wherein the phase-encoded compensation signal is obtained by xoring the encoded signal of the current period with the encoded signal of the next period according to the pulse period.
4. The method for simulating a target signal in a near zone of a code phase modulation pulse Doppler fuze according to claim 1, wherein the cross-period delay processing is performed by delaying a signal in a current pulse period to a preset position in a next pulse period according to the cross-period compensation time.
5. A coded phase modulation pulse doppler fuze near zone target signal simulation device, comprising: the device comprises a receiving unit, a synchronizing unit, a modulating unit, a delay unit, a phase control unit and a power control unit; wherein, the liquid crystal display device comprises a liquid crystal display device,
the receiving unit is used for receiving the transmitting signals of the code phase modulation pulse Doppler fuze and distributing the transmitting signals to two signal channels;
the synchronous unit is connected with the receiving unit and is used for receiving the coded signals given by the coded phase modulation pulse Doppler fuze, detecting one path of the transmitted signals output by the receiving unit to obtain pulse periods, and respectively calculating the cross-period compensation time and the phase coding compensation signals according to the pulse periods;
the modulation unit is connected with the receiving unit and is used for carrying out Doppler frequency modulation processing on the other path of the transmitting signal output by the receiving unit according to the characteristics of the target signal to be simulated and outputting the Doppler frequency modulation processing to the delay unit;
the delay unit is respectively connected with the synchronization unit and the modulation unit, and is used for carrying out distance delay processing on the signal output by the modulation unit according to the characteristics of the target signal to be simulated, carrying out cycle-crossing delay processing on the signal after the distance delay processing according to the cycle-crossing compensation time input by the synchronization unit, obtaining a cycle-crossing signal, and outputting the cycle-crossing signal to the phase control unit;
the phase control unit is respectively connected with the synchronization unit and the delay unit, and is used for carrying out phase inversion on the cross-period signal according to the phase coding compensation signal and outputting the phase inversion to the power control unit;
the power control unit is used for performing power control corresponding to the template signal characteristics required to be simulated on the signal output by the phase control unit and outputting the signal to the code phase modulation pulse Doppler fuze so as to finish near-zone target simulation.
6. The code phase modulated pulse doppler fuze near zone target signal simulation device of claim 5, wherein in the synchronization unit, the cross-period compensation time is obtained by subtracting a system fixed delay from the pulse period.
7. The code phase modulation pulse doppler fuse near zone target signal simulation apparatus of claim 5, wherein in the synchronization unit, the phase code compensation signal is obtained by xoring a code signal of a current period with a code signal of a next period according to the pulse period.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103513232A (en) * | 2012-06-26 | 2014-01-15 | 北京华清瑞达科技有限公司 | Fuze body object simulation method and system |
| CN106646399A (en) * | 2016-08-12 | 2017-05-10 | 南京理工大学 | Semi-physical simulation device for fuze body object echo simulation |
| CN108089164A (en) * | 2017-10-30 | 2018-05-29 | 北京航天福道高技术股份有限公司 | A kind of broadband target simulator signal processing unit |
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| ITRM20130120A1 (en) * | 2013-02-28 | 2014-08-29 | Mbda italia spa | RADAR PROXIMITY SPOOL AND METHOD OF PROCESSING AN ECO RADAR SIGNAL FOR THE ACQUISITION OF DISTANCE INFORMATION BETWEEN A TARGET AND A DOPPLER RADAR |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103513232A (en) * | 2012-06-26 | 2014-01-15 | 北京华清瑞达科技有限公司 | Fuze body object simulation method and system |
| CN106646399A (en) * | 2016-08-12 | 2017-05-10 | 南京理工大学 | Semi-physical simulation device for fuze body object echo simulation |
| CN108089164A (en) * | 2017-10-30 | 2018-05-29 | 北京航天福道高技术股份有限公司 | A kind of broadband target simulator signal processing unit |
Non-Patent Citations (1)
| Title |
|---|
| 赵琦 等."引信目标回波模拟器的建模与实现".《系统仿真学报》.2008,第20卷(第10期),第2674-2681页. * |
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