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Target detection method based on pulse energy compression technology

A target detection and compression technology, which is applied in measuring devices, radio wave measurement systems, radio wave reflection/re-radiation, etc., can solve problems such as low accuracy and complex implementation of frequency control arrays, and achieves good results and is easy to implement , the effect of strong realizability

Active Publication Date: 2019-06-28
UNIV OF ELECTRONICS SCI & TECH OF CHINA +1
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Problems solved by technology

However, there are also some problems in the frequency control array, one of which is that after the spatial energy of the frequency control array is compressed into a focal band, from figure 2 It can be seen that this is an irregular focusing zone. In the radar target detection system, the accuracy of calculating the distance of the position is low; the second is that the realization of the frequency control array is also very complicated. The frequency control array elements There is also mutual coupling between

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  • Target detection method based on pulse energy compression technology
  • Target detection method based on pulse energy compression technology
  • Target detection method based on pulse energy compression technology

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[0045] Exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that the implementations shown and described in the drawings are only exemplary, intended to explain the principle and spirit of the present invention, rather than limit the scope of the present invention.

[0046] In the embodiment of the present invention, the traditional linear symmetrical frequency control array is changed into a single-antenna multi-frequency source transmission structure, and then a single-antenna frequency diversity system structure is formed, such as image 3 As shown, and based on the single-antenna frequency diversity system structure, a target detection method based on pulse energy compression technology is proposed, such as Figure 4 As shown, the following steps S1-S9 are included:

[0047]S1. Generate an initial signal with a set carrier frequency through a signal source.

[0048] In the embo...

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Abstract

The invention discloses a target detection method based on a pulse energy compression technology. A traditional linear symmetric frequency control array is changed into a transmitting structure of a single-antenna multi-frequency source so as to form a single-antenna frequency diversity system structure, the single-antenna frequency diversity system structure is applied to target detection, energyfocusing on space target detection is high so as to have high detection precision, and the accuracy of the target detection can be further improved. The single-antenna frequency diversity system structure provided by the invention has a wide prospect in radar detection; more array structures can be explored on the basis of the structure; and the target detection method based on the pulse energy compression technology is widely used in radar and wireless communication, and has strong practicability.

Description

technical field [0001] The invention belongs to the technical field of microwave radar and wireless communication, and in particular relates to the design of a target detection method based on pulse energy compression technology. Background technique [0002] Array antenna technology is widely used in the fields of radar, wireless communication, sonar and navigation. According to the needs of practical applications, antennas can be arranged in different ways. The most basic ones can be divided into linear array and area array. Compared with a single antenna, an array antenna can realize functions such as beam scanning, beam forming, and multi-beam. Researchers at home and abroad often conduct performance and application research according to the functional classification of array antennas, such as phased array antennas, frequency scanning antennas, adaptive antennas, and multiple-input multiple-output antennas (MIMO). In recent years, new arrays derived from phased arrays a...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/10G01S7/41H04B1/04
Inventor 金海陆王桃金海焱张力廖丹
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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