Pulse pressure navigation radar target detection method

A target detection and navigation radar technology, which is applied in the design and research field of marine navigation radar, can solve the problems of strong target information interference, low detection accuracy, weak target is not easy to detect and display stably and continuously, and achieve the detection improvement and detection of weak targets. High accuracy and low interference effect

Active Publication Date: 2015-12-16
CHENGDUSCEON TECH
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Problems solved by technology

[0007] The invention provides a pulse pressure navigation radar target detection method, which solves the problem that in the existing marine navigation radar target detection method, when the target is a weak target, the weak target is not easy to be stably and continuously detected and displayed due to the information interference of the strong target. The technical problem of low detection accuracy has realized the reduction of the interference of the strong target echo signal on the weak target signal during detection, which has improved the detection of weak targets and the technical effect of high detection accuracy

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  • Pulse pressure navigation radar target detection method

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Embodiment 1

[0054] In Embodiment 1, for a pulse pressure navigation radar device that transmits radio waves while rotating the antenna and receives the echo signal returned by the antenna, the present invention utilizes the noise information in the echo signal, and the amplitude of the strong target echo Weakening is performed to reduce the influence of strong target echoes on weak target echoes, so that the threshold formation method of target detection can meet the detection requirements of weak targets near strong targets.

[0055] With reference to the accompanying drawings, figure 1 It is an overall structure diagram including the pulse pressure navigation radar of the present invention. The pulse pressure navigation radar has an antenna, a transmission control unit, a transceiver control unit, a receiver, a pulse compression unit, and the threshold value forming unit and target detection unit of the application of the present invention.

[0056] The transmission control unit generat...

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Abstract

The invention discloses a pulse pressure navigation radar target detection method, and is applied to a pulse pressure navigation radar. The pulse pressure navigation radar includes an antenna, an emission control unit, a transceiving control unit, a receiver, a pulse compression unit, a threshold value forming unit and a target detection unit. The method utilizes noise information in echo signals, weakens the echo amplitude of a strong target, and reduces influence of the echo of the strong target on an echo of a weak target, thereby enabling a threshold value forming method of target detection to satisfy requirements of detection of the weak target in the vicinity of the strong target.

Description

technical field [0001] The invention relates to the design and research field of marine navigation radar, in particular to a target detection method of pulse pressure navigation radar. Background technique [0002] Navigation radar and automatic radar plotting device are important equipment in the field of navigation. They are necessary equipment for approaching land and guiding ships into and out of ports and narrow waterways. Marine radar is a radar that guarantees navigation of ships, also known as marine radar. It is especially suitable for guiding ships in and out of the bay, passing through narrow waterways and coastal navigation in dark nights and foggy days, and mainly plays the role of anti-collision navigation. [0003] The target detection function is the basic function of the marine navigation radar. The target detection is mainly to distinguish the target and the noise from the received radar echo data. The target detection method mainly adopts the detection alg...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/36G01S13/88
CPCG01S7/36G01S13/88
Inventor 张鑫何奎
Owner CHENGDUSCEON TECH
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