Method and device for estimating reference channel coefficients of external radiation source radar
A technology of external radiation source radar and channel coefficient, which is applied in the field of external radiation source radar reference channel coefficient estimation, and can solve the problem of high calculation amount of channel estimation
Active Publication Date: 2021-08-17
UNIV OF ELECTRONICS SCI & TECH OF CHINA +1
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[0005] In view of this, the embodiment of the present application provides a method and device for estimating the radar reference channel coefficient of an external radiation source, so as to improve the problem of high computational complexity in channel estimation in the prior art
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[0040] See figure 1 , figure 1 It shows a schematic flow chart of the method for estimating the external radiation source radar reference channel coefficient provided by the method embodiment of the present application, specifically including the following steps S110 to S130:
[0041] Step S110, obtaining the estimated channel coefficient value of the t-th frame, the atomic set of the t-th frame, and the index set of the t-th frame.
[0042] In the process of estimating the estimated channel coefficient value of the t+1th frame, the estimated channel coefficient value estimated in the previous frame (the tth frame), and the atomic set of the tth frame corresponding to the channel coefficient estimated value and Set of indices for frame t.
[0043] Step S120, acquiring the received signal of the t+1th frame.
[0044] The received signal is the signal after the multipath channel signal is affected by the transmission environment, and the received signal can be received by the...
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An embodiment of the present application provides a method and device for estimating a reference channel coefficient of an external radiation source radar, which is used for estimating the channel coefficient of at least one frame of a received signal. The method includes: obtaining an estimated channel coefficient value of the t-th frame, The atomic set of the tth frame and the index set of the tth frame; obtain the received signal of the t+1th frame; according to the received signal of the t+1th frame, the channel coefficient estimation value of the tth frame, and the atom of the tth frame set and the index set of the tth frame, and calculate the channel coefficient estimation value of the t+1th frame. Since the result data of the previous frame is involved in the estimation operation of the current frame, the calculation amount can be reduced while ensuring the estimation accuracy.
Description
technical field [0001] The present application relates to the field of communication technologies, and in particular, to a method and device for estimating external radiation source radar reference channel coefficients. Background technique [0002] When estimating the channel coefficient of a multipath channel signal, the external radiation source radar is usually used to obtain the received signal, and then the channel coefficient is estimated for the received signal. The received signal is the multipath channel signal affected by the transmission environment. [0003] In the prior art, channel coefficients are usually estimated by a least square (Least Square, LS for short) method or an orthogonal matching pursuit (Orthogonal Matching Pursuit, OMP for short) algorithm. [0004] However, in the estimation process using the LS algorithm, when the relationship between the sampling rate of the multipath channel signal and the symbol rate is a non-integer multiple, it will se...
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IPC IPC(8): G01S13/00G01S7/02H04L25/02
CPCG01S7/02G01S13/006H04L25/0202
Inventor 宫健万群丁学科万义和王长生陈赓
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA