Dual-polarized passive jamming pulse signal precise generation method

A passive interference and pulse signal technology, applied in radio wave measurement systems, instruments, etc., can solve problems such as pulse edge jitter, time-consuming calculation, and restrictions on the popularization and application of passive interference technology

Active Publication Date: 2014-12-17
NANJING CHANGFENG AEROSPACE ELECTRONICS SCI & TECH
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Problems solved by technology

[0003] In the existing passive interference signal simulation technology, there are usually the following problems: 1) The passive interference clutter data is huge, the storage is limited, and the calculation is time-consuming; 2) The passive interference clutter pulse signal and radar CPI (radar Synchronous pulse signal) is not synchronous, due to the irregularity of clutter data and the inconsistency of the crystal oscillator source, there is usually jitter before and after the pulse edge; 3) The acquisition card based on high-speed DA, the clock signal set by the software timer when the internal clock mode works The crystal oscillator of the external clock signal is not synchronized; in

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  • Dual-polarized passive jamming pulse signal precise generation method
  • Dual-polarized passive jamming pulse signal precise generation method
  • Dual-polarized passive jamming pulse signal precise generation method

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Embodiment Construction

[0031] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] As mentioned above, the present invention is an accurate generation method of a dual-polarized passive interference pulse signal, which is used to accurately generate a dual-polarized passive interference pulse signal, and load the simulated cloud, rain, ground, sea, and chaff original The simulation data is convolved with the radar signal parameters to generate the passive interference scattering echo signal, and then through the pulse alignment with an accuracy error of less than 5ns, the data is downloaded at high speed, the error is less than 5ns, the delay is accurate, the pulse width error is less than 5ns, and the accuracy is controlled. The dual-polarization modulation of the signal realizes the precise generation of passive interference pulse signals.

[0033] The principle block diagram of the method for accurately generating...

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Abstract

The invention discloses a dual-polarized passive jamming pulse signal precise generation method used for generating a dual-polarized passive jamming pulse signal precisely. The dual-polarized passive jamming pulse signal precise generation method comprises the steps of: uploading original artificial data of artificial cloud, rain, ground, sea and foils through a production line mode; convoluting the original artificial data and a radar signal parameter to generate a passive jamming scattered echo signal; aligning with a pulse with the precision error less than 5 ns; downloading the data at a high speed; delaying precisely when the error is less than 5 ns; controlling precisely when a pulse width error is less than 5 ns; performing dual-polarized modulation on the signal to realize precise generation of the passive jamming pulse signal.

Description

technical field [0001] The invention relates to a method for accurately generating a dual-polarization passive interference pulse signal, which belongs to the technical field of radar semi-physical radio frequency simulation. Background technique [0002] Hardware-in-the-loop radio frequency simulation technology has become an important means to study radar defense and penetration problems, and passive jamming technology has the advantages of large interference space and frequency bandwidth, and has become a jamming method often used in radar defense and penetration technology. Reality and passive interference have become one of the key issues in the research of radar hardware-in-the-loop simulation technology. [0003] In the existing passive interference signal simulation technology, there are usually the following problems: 1) The passive interference clutter data is huge, the storage is limited, and the calculation is time-consuming; 2) The passive interference clutter p...

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Application Information

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IPC IPC(8): G01S7/38
CPCG01S7/38
Inventor 陆晓路王传礼王先敏
Owner NANJING CHANGFENG AEROSPACE ELECTRONICS SCI & TECH
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