Optimal Waveform Design Method for Radar Based on Radio Frequency Stealth in Spectrum Sharing Environment

A spectrum sharing, radio frequency stealth technology, applied in the direction of using re-radiation, radio wave measurement system, radio wave reflection/re-radiation, etc., can solve the problem of not considering radar waveform optimization design, performance impact, etc., to ensure radio frequency stealth performance. , the effect of ensuring channel capacity, improving practicability and security
CN106680780BActive Publication Date: 2019-05-31NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
5 Cites 1 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Publication Date
2019-05-31

Smart Images

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

Abstract

The present invention discloses a radar optimal waveform design method based on radio frequency stealth in a frequency spectrum shared environment, belonging to the radar design and manufacturing field. The method comprises: obtaining priori knowledge of detection area target frequency response of a radar and communication system and signals of a communication system, and assuming that the echo of the communication signals reflected through the target to the radar can be received and processed by the radar; and establishing an optimal waveform design mathematic model; and employing the Lagrange multiplier method to solve the optimal waveform design mathematic model and performing iterative computation to determine the optimal emission waveform of the radar system. The minimization of the total emission power of the radar is taken as a target, the emission waveform of the radar system is subjected to adaptive optimization design in the conditions of satisfying a certain target parameter estimation performance and the communication system channel capacity so as to ensure the channel capacity and the communication quality of the communication system and allow the radar system to ensure the optimal radio frequency stealth performance in the condition of satisfying a certain target parameter estimation performance.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a radar waveform design method, in particular to a radar optimal waveform design method based on radio frequency stealth in a spectrum sharing environment, and belongs to the field of radar design and manufacture. Background technique

[0002] Radar waveform optimization design is an important means to improve the performance of radar system. Under the condition that the real frequency response of the extended target is known, there are currently two methods for radar waveform optimization design: one is the optimal detection of the target, which maximizes the output SINR (Signal-to-Interference -plus-Noise Ratio, SINR) allocates energy to the most significant mode of the target response to obtain the optimal transmission waveform for better detection of extended targets; the second is the optimal estimation of target parameters, the method passes the maximum The mutual information (Mutual Information, MI) between the radar re...

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