Composite coding method and device for radar detection

A composite coding and radar technology, applied in the field of radar detection coding, can solve the problem of not further improving the range resolution and anti-noise performance, and achieve the effect of improving the range resolution and anti-noise performance.

Pending Publication Date: 2019-05-21
NANCHANG UNIV
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Problems solved by technology

Since the highest number of digits of the Barker code is only 13, there is no possibility to further improve the distance resolution and anti-noise performance

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  • Composite coding method and device for radar detection
  • Composite coding method and device for radar detection
  • Composite coding method and device for radar detection

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Embodiment Construction

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. In addition, the technical features in each embodiment or a single embodiment provided by the present invention can be combined arbitrarily with each other to form a feasible technical solution, but it must be based on the realization of those skilled in the art. When there is a contradiction or cannot be realized, it should be considered that ...

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Abstract

The embodiment of the invention provides a composite coding method and equipment for radar detection. The method comprises the following steps: obtaining a composite code according to a first basic code and a second basic code; and using the composite code for radar detection. Specifically, the step of obtaining a composite code according to a first basic code and a second basic code comprises thesteps of multiplying code elements in the second basic code by code elements in the first basic code to obtain a plurality of modulated code elements; and forming the composite code by the pluralityof modulated code elements. According to the composite coding method and device for radar detection provided by the embodiment of the invention, the two basic codes are modulated, specifically, the complementary code and the strong alternating code can be modulated to obtain the composite code, and the distance resolution and the anti-noise performance of radar detection can be improved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of radar detection coding, and in particular to a composite coding method and device for radar detection. Background technique [0002] The basic principle of incoherent scattering is to use the weak scattering signal of space plasma to measure multiple physical parameters in the ionosphere (such as electron density, electron temperature, ion temperature, ion drift velocity, etc.), because this kind of scattering is very weak, so Measurement equipment is usually dominated by incoherent scatter radar, because it has a high detection range, high detection accuracy and high spatial resolution, these advantages mainly rely on complex coding schemes. The coding schemes of long pulse code, Barker code, complementary code and alternating code generally used in incoherent scattering radar are all binary phase codes, except for long pulse code. The transmitted pulse is divided into a series of ...

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Application Information

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IPC IPC(8): G01S7/02G01S13/02H03M7/30
Inventor姚明袁凯于东冉邓晓华
OwnerNANCHANG UNIV