A low-speed target detector and method with user-configurable parameters

A technology for configuring parameters and detectors, which is applied in the field of communication, can solve problems such as complex control logic, poor real-time performance, and single working scene, and achieve the effects of small hardware overhead, low cost, and short design cycle

Active Publication Date: 2019-10-11
XIDIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The invention solves the problems of complex control logic, poor real-time performance and single working scene of the traditional low-speed target detector, can improve the data processing rate and meet the real-time requirements

Method used

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  • A low-speed target detector and method with user-configurable parameters
  • A low-speed target detector and method with user-configurable parameters
  • A low-speed target detector and method with user-configurable parameters

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Embodiment Construction

[0070] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0071] Refer to attached figure 1 , the overall structure of the device of the present invention is described in further detail.

[0072] The device of the invention includes a logic control module, a data conversion module, a fast Fourier transform FFT processing module and a frequency domain filtering module. The fast Fourier transform FFT processing module is connected with the data conversion module and the frequency domain filtering module through the data bus, and the logic control module is connected with the data conversion module, the fast Fourier transform FFT processing module and the frequency domain filtering module through the control bus.

[0073] The logic control module is used for the user to input the number of range gates and the number of pulses emitted by the radar in each coherent processing interval CPI, and configure the order of the...

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Abstract

The invention discloses a low-speed target detector and method with user-configurable parameters. The detector is composed of a logic control module, a data conversion module, a fast Fourier transform(FFT) processing module and a frequency domain filter module. According to the detector, a complex number modulo unit with configurable initial parameters and four-stage flow water is used, so that the data processing rate of the low-speed target detector is increased and defects of long design cycle time, high hardware cost, and single application scene of DSP-based low-speed target detection are overcome. The method comprises: step one, configuring initial parameters; step two, generating read / write addresses; step three, carrying out butterfly operations; step four, obtaining a converted order number; step five, determining whether the operation is ended; step six, carrying out weighted filtering; step seven, carrying out three-section high-precision complex number modulo; and step eight, acquiring low-speed target data. According to the invention, with the three-section high-precision complex number modulo method, the operation complexity is reduced.

Description

technical field [0001] The invention belongs to the technical field of communication, and further relates to a low-speed target detector and a method with user-configurable parameters in the technical field of digital signal processing. The invention can be used to detect low-speed targets in the echo signals received by the pulse Doppler radar, improve the speed of data processing, and meet the real-time requirements. Background technique [0002] Our country has a vast territory, and various disasters and accidents often occur. In disaster and accident rescue, how to quickly find the wounded is very important to save lives. In addition, the complex terrain and landforms in some areas provide convenience for various criminals to hide , Accurately and quickly discovering criminals has become the key to preventing casualties of armed police and public security personnel. Therefore, in the background of strong clutter, the detection of low-speed targets has become a key techn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/292
Inventor 史江义胡雪云孟坤马佩军郭海叶艺峰黄莹汪倩
Owner XIDIAN UNIV
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