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A Hybrid Parallel Processing Method for Pulse Doppler Radar Signals

A pulse Doppler and radar signal technology, applied in radio wave measurement systems, instruments, etc., can solve the problems that affect the radar system upgrade cycle and reliability, large communication overhead, and poor scalability of the radar system, so as to overcome the scalability Poor reliability, short upgrade cycle, and high reliability

Active Publication Date: 2020-04-14
XIDIAN UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage of this method is that due to the parallel processing method based on FPGA+DSP design, when the radar system needs to change or increase functions, or even adjust some radar parameters, it needs to be redesigned. impact on the upgrade cycle and reliability of the radar system
The disadvantage of this method is that, through the data parallel strategy, the data is distributed to different DSP chips for processing, which brings a large communication overhead and the radar system has poor scalability.

Method used

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  • A Hybrid Parallel Processing Method for Pulse Doppler Radar Signals
  • A Hybrid Parallel Processing Method for Pulse Doppler Radar Signals
  • A Hybrid Parallel Processing Method for Pulse Doppler Radar Signals

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] The invention utilizes a CPU hardware platform of a multi-core central processing unit and adopts a mixed parallel model to realize the processing of the pulse Doppler radar signal.

[0029] refer to figure 1 The implementation steps of the present invention are further described.

[0030] Step 1, initialize the multi-core central processing unit CPU thread.

[0031] Set the task execution thread entry, and open up the task execution thread for calling the CPU hardware thread of the multi-core central processing unit.

[0032] The task execution thread includes a main thread, an input thread, an output thread, and multiple sets of pipeline threads; wherein each set of pipelines contains 3 sub-threads.

[0033] Step 2, open up the memory space required for radar signal processing on the CPU side of the multi-core central processing unit.

[0034] Step 3, the ...

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Abstract

The invention discloses a hybrid parallel processing method of pulse doppler radar signals. The method comprises the following specific steps: (1) initializing a processing thread of a multi-core CPU;(2) opening up a memory space needed by radar signal processing at the multi-core CPU end; (3) collecting and storing data by a radar system; (4) performing data analysis; (5) processing the multi-channel data; and (6) performing multi-channel data mixing and parallel processing synchronization. The method can achieve real-time processing of pulse doppler radar signals at the multi-core CPU end,the upgrading period of the radar system is shortened, and the expandability of the radar system is improved.

Description

technical field [0001] The invention belongs to the technical field of electric communication, and further relates to a mixed and parallel pulse Doppler radar signal processing method in the technical field of radar signal processing. The invention can realize real-time processing of pulse Doppler radar signals. Background technique [0002] Pulse Doppler radar is a kind of pulse radar that uses signal frequency domain characteristics to distinguish and detect targets. When the transmitter transmits high-frequency energy pulses at a specific frequency, the echoes of targets with different radial velocities received in the same range unit have different Doppler shifts. Therefore, pulse Doppler radar has the ability of precise speed measurement and speed resolution. The pulse Doppler radar filters the signal through the pulse compression and moving target detection module, and through the target detection, the defuzzification module performs target recognition and speed dete...

Claims

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Application Information

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IPC IPC(8): G01S7/28G01S7/292
CPCG01S7/2806G01S7/2927
Inventor 朱虎明师玮焦李成罗政王虹现田小林张小华马晶晶
Owner XIDIAN UNIV
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