Waveform Separation Method for MIMO Radar Based on Compressive Sensing

A radar waveform and separation method technology, applied in the field of radar, can solve the problem of not applying MIMO radar waveform separation and the like
CN107037409BActive Publication Date: 2021-09-14AIR FORCE UNIV PLA
4 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
AIR FORCE UNIV PLA
Publication Date
2021-09-14

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a MIMO radar waveform separation method based on compressed sensing, which includes: (1) transmitting orthogonal waveforms; (2) receiving target echoes; (3) constructing a sensing matrix; (4) sparsely reconstructing one-dimensional targets distance like. Based on the sparsity of the radar target in the distance upward, the invention realizes the orthogonal separation of different waveform components in the MIMO radar echo by constructing a perception matrix related to the transmitted waveform set and using a joint sparse restoration algorithm. This method replaces the traditional matched filtering process, effectively suppresses the high range sidelobe caused by non-orthogonal waveforms, and breaks through the limitation of the signal bandwidth on the range resolution, improving the range resolution.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of radar, in particular to a method for separating MIMO radar waveforms based on compressed sensing. Background technique

[0002] Multiple-Input Multiple-Output (MIMO) radar adopts a multiple-input multiple-receiver system. Each transmitting antenna radiates mutually orthogonal waveforms. Each receiving antenna receives all transmitted signals and responds to echoes corresponding to different transmitted waveforms at the back end. The components are separated, so that the observation channels and degrees of freedom that are much more than the actual number of receiving and transmitting array elements can be obtained. The virtual array formed by MIMO radar is expected to realize the imaging of moving targets under short-term observation or even single-shot illumination, thereby avoiding the complicated problem of translation compensation.

[0003] Waveform separation is the basis of MIMO radar signal proces...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More