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Ultra-wideband pseudo-random encoding radar system

A pseudo-random coding and radar system technology, applied in the field of ultra-wideband pseudo-random coding radar system, can solve the problem of difficult compensation of amplitude distortion and phase distortion of pseudo-random coding radar transmitter, small dynamic range of pseudo-random coding radar receiver, pulse compression Problems such as low time efficiency and calculation errors achieve the effects of increasing detection distance and detection probability, large receiving dynamic range, and low price

Active Publication Date: 2014-12-10
INST OF ELECTRONICS CHINESE ACAD OF SCI
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Problems solved by technology

[0008] (1) The amplitude distortion and phase distortion of the pseudo-random code radar transmitter are difficult to compensate, the code length is fixed, and the flexibility is poor
[0009] (2) Pseudo-random coding radar receiver has small dynamic range and high power consumption
Pulse compression is time inefficient or contains calculation errors

Method used

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Embodiment Construction

[0043] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that in the drawings or description of the specification, similar or identical parts use the same drawing numbers. The implementations not shown or described in the drawings are those known to those of ordinary skill in the art. In addition, although this article may provide an example of a parameter containing a specific value, it should be understood that the parameter does not need to be exactly equal to the corresponding value, but can be approximated to the corresponding value within acceptable error tolerances or design constraints.

[0044] The purpose of the present invention is to propose an ultra-wideband pseudo-random coded radar system, which includes a pseudo-random coded signal generator,...

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Abstract

The invention provides an ultra-wideband pseudo-random encoding radar system. According to the system, a signal output from a transmitting channel is divided into two signals; one encoded signal is transmitted out by an antenna; the other encoded signal is directly acquired by a first receiving channel as a reference signal for use in pulse compression. Therefore, the fact that the two signals are generated and acquired at the same temperature can be guaranteed, uniformity of the two signals is guaranteed, post-pulse-compression peak-to-sidelobe ratio is increased, and the system has a wider detection range and higher detection probability.

Description

Technical field [0001] The invention relates to the technical field of radars in the electronics industry, in particular to an ultra-wideband pseudo-random coded radar system. Background technique [0002] In recent years, ultra-wideband radar technology has attracted much attention in the scientific and engineering circles, especially in the fields of anti-terrorism, ground exploration, technical investigation, military, search and rescue, security inspection, and medicine. Ultra-wideband technology is a radar detection method with good resolution and penetration depth, which can perform non-invasive detection and imaging of moving targets hidden behind walls. In recent years, it has attracted much attention because of its wide application in the fields of anti-terrorism and disaster relief. [0003] At present, most ultra-wideband pseudo-random coded radars are in the laboratory development stage. In actual engineering, the radar is required to have a large time bandwidth produ...

Claims

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Application Information

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IPC IPC(8): G01S13/88G01S7/28
CPCG01S7/282G01S7/295G01S13/0209G01S13/888
Inventor 方广有夏正欢张群英叶盛波陈洁阴和俊
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI
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