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Distributed MIMO (multiple-input multiple-output) radar orthogonal wide main lobe phase-coded signal design method

A technology of phase encoding signal and design method, which is applied in the design of quadrature wide main lobe phase encoding signal of distributed MIMO radar based on matched filtering, and in the field of design of quadrature wide main lobe phase encoding signal of distributed MIMO radar, which can solve the problems that have not been proposed Wide main lobe quadrature phase encoding signal design method and other issues, to achieve the effect of reducing the distance side lobe level, increasing difficulty, and large degrees of freedom

Active Publication Date: 2016-11-09
XIDIAN UNIV +1
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Problems solved by technology

No design method for wide main lobe quadrature phase encoded signals has been proposed so far

Method used

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  • Distributed MIMO (multiple-input multiple-output) radar orthogonal wide main lobe phase-coded signal design method
  • Distributed MIMO (multiple-input multiple-output) radar orthogonal wide main lobe phase-coded signal design method
  • Distributed MIMO (multiple-input multiple-output) radar orthogonal wide main lobe phase-coded signal design method

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Embodiment Construction

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] An embodiment of the present invention provides a method for designing a quadrature wide main lobe phase encoding signal for a distributed MIMO radar. Refer to figure 1 , the method includes the steps of:

[0021] Step 1. Determine the number of sub-phase encoded signals in the quadrature wide main-lobe phase-encoded signal, the symbol length of each sub-phase encoded signal, and the main lobe width control amount of each sub-p...

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Abstract

The invention belongs to the technical field of radar, and discloses a distributed MIMO (multiple-input multiple-output) radar orthogonal wide main lobe phase-coded signal design method, which can acquire low autocorrelation peak side lobe level and peak cross-correlation level in a condition of ensuring the bandwidth of the orthogonal wide main lobe phase-coded signal to be unchanged. The method comprises steps: the number of sub phase-coded signals in the orthogonal wide main lobe phase-coded signal, the symbol length of each sub phase-coded signal and a main lobe width control variable after each sub phase-coded signal is subjected to pulse compression are determined; according to the number of the sub phase-coded signals in the orthogonal wide main lobe phase-coded signal, the symbol length of each sub phase-coded signal and the main lobe width control variable after each sub phase-coded signal is subjected to pulse compression, an objective function for the orthogonal wide main lobe phase-coded signal is constructed; and the objective function for the orthogonal wide main lobe phase-coded signal is solved, and the orthogonal wide main lobe phase-coded signal is obtained.

Description

technical field [0001] The present invention relates to the field of radar technology, in particular to a method for designing a quadrature wide main lobe phase encoding signal of a distributed MIMO radar, specifically a design method for a distributed MIMO radar quadrature wide main lobe phase encoding signal based on matched filtering , which is used to further reduce the autocorrelation peak sidelobe level and the peak cross-correlation level. Background technique [0002] For the next-generation radar system, MIMO (multiple-input multiple-out) radar is a very promising radar type. The biggest difference between MIMO radar and phased array radar is that MIMO radar allows different antennas to transmit different signals, while phased array radar can only transmit the same signal. Due to the increased diversity of transmitted signals, MIMO radar can achieve higher spatial resolution and better detection performance. According to the distance between transmitting antennas,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/02
CPCG01S7/02
Inventor 周生华刘宏伟徐磊磊严俊坤王鹏辉
Owner XIDIAN UNIV
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