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Multistatic sea small target radar detection method

A detection method and multi-base technology, applied in the field of radar detection, can solve the problems of low detection accuracy and limited distance of radar detection of small targets, and achieve the effect of increasing the detection distance and the detection probability.

Pending Publication Date: 2019-08-09
中国人民解放军海军航空大学青岛校区
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Problems solved by technology

[0012] In order to solve the technical problems of limited distance and low detection accuracy of the existing radar detection of small targets, the present invention proposes a multi-base maritime small target radar detection method, which can solve the above problems

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  • Multistatic sea small target radar detection method
  • Multistatic sea small target radar detection method

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Embodiment 1

[0041] Embodiment 1, this embodiment proposes a shore-based launch, airborne reception multi-base radar sea small target detection method, such as figure 1 shown, including the following steps:

[0042] The shore-based transmitter unit transmits electromagnetic wave signals to the target sea area; by arranging the transmitter unit on the shore base, it can provide sufficient transmission power to improve the detection distance.

[0043] A small target refers to a target with a small reflection cross-sectional area RCS, generally less than 0.5 square meters.

[0044] Multiple airborne receiving units receive the echo signals reflected by the target from multiple directions; the receiving unit adopts multiple airborne platforms to solve the problem of small target RCS (Radar-Cross Section, radar cross-sectional area) fluctuating with the observation angle, Ensure that the target RCS will not be at the minimum value at the same time, and improve the detection probability of smal...

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Abstract

The invention discloses a multistatic radar sea small target detection method, which comprises the following steps: a shore-based transmitting unit transmits an electromagnetic wave signal to a targetsea area; multiple airborne receiving units receive echo signals reflected by the target from different directions respectively; and each airborne receiving unit processes echo signals, the target isdetected and target position information is generated. According to the multistatic radar sea small target detection method, the shore-based transmitting unit is adopted to transmit the electromagnetic wave signal, and the multiple airborne receiving units receive the echo signals reflected by the target from different directions. The transmitting unit is arranged on the shore to provide large enough transmission power to increase the detection distance, the receiving unit adopts multiple airborne platforms to solve the problem that the small target RCS violently fluctuates with an observation angle, the target RCS is ensured not to be at the minimum at the same time, and the sea small target detection probability is improved.

Description

technical field [0001] The invention relates to the technical field of radar detection, in particular to a method for detecting small targets on the sea by multi-base radar with shore-based emission and airborne reception. Background technique [0002] In the field of radar detection, small maritime targets such as submarine vents, periscopes, and sea-skimming missiles are very dangerous and are valuable detection targets. However, the detection of small targets at sea is a difficult point in the field of radar detection. The existence of the following factors makes it difficult to detect small targets at sea: [0003] ①Small target radars at sea have weak ability to reflect electromagnetic waves, and the background of sea clutter is strong; [0004] ②The RCS value of a small target fluctuates violently with the observation angle, and the target attitude disturbance is easy to make the target RCS easily be at a minimum value; [0005] ③Line-of-sight limitation makes the de...

Claims

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Application Information

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IPC IPC(8): G01S7/41
CPCG01S7/414
Inventor 夏栋李淑华王守权高伟亮郭维波
Owner 中国人民解放军海军航空大学青岛校区
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