Pulse delay circuit and scanning method

A technology of pulse delay and pulse delay, applied in the field of radar, can solve the problem of radar echo signal simulation of immovable targets

Active Publication Date: 2013-08-14
CHINA ELECTRONIS TECH INSTR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The pulse delay circuit and scanning method of the present invention use FPGA to control the delay between the trigger pulse and the output pulse, so that the pulse delay presents a dynamic change, which solves the problem that the existing pulse signal generator cannot detect the radar echo of the moving target. Signal Simulation Problems

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0029] The delay time of the pulse signal generated by the existing technology relative to the trigger pulse is fixed. When used for radar signal simulation, it can only simulate the distance of the static target relative to the radar, and cannot reflect the motion characteristics of the target. The simulation of the target could not be achieved.

[0030] The pulse delay circuit of the present invention can produce a pulse signal whose delay time is variable relati...

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Abstract

The invention relates to a pulse delay circuit and a scanning method. An FPGA (Field Programmable Gate Array) is used for controlling delay between a trigger pulse and an output pulse, so that pulse delay is enabled to be dynamically changed and the problem that the existing pulse signal generator cannot simulate radar echo signals of moving targets is solved.

Description

technical field [0001] The invention relates to the technical field of radar, in particular to a pulse delay circuit, and also to a pulse delay scanning method. Background technique [0002] With the development of radar technology, radar is more and more widely used in various industries, and the monitoring targets are complex and changeable. In order to better meet the development needs of radar testing, it is necessary for the test source to accurately simulate the echo signal of the actual target. This will not only It is required to be able to simulate the echo signals of static targets, and also to simulate the echo signals of moving targets. Since the distance between the moving target and the radar is constantly changing, the delay between the corresponding reflected signal and the transmitting signal is also constantly changing. In order to simulate the entire movement process of the target, the test source is required to output pulse signals and trigger pulses The...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H03K5/14G01S7/40
Inventor范吉伟刘亮李增红王娜
OwnerCHINA ELECTRONIS TECH INSTR CO LTD