Multi-antenna receiver design based on orthogonal time-frequency air conditioning
A multi-antenna and receiver technology, applied in diversity/multi-antenna systems, space transmit diversity, radio transmission systems, etc., can solve the problems of reduced channel sparsity, increased MP complexity, and difficult applications
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[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0024] figure 1 It is a flow chart for designing a multi-antenna receiver based on orthogonal time-frequency-space modulation according to some embodiments of the present invention. Such as figure 1 As shown, in view of the problem that Doppler expansion seriously affects the performance of traditional multi-carrier modulation OFDM systems in high-dynamic multi-path communication scenarios, we propose that the multi-path time-domain signals arriving at the receiving antenna array are first processed by a beamforming network. Then multiple parallel branches with enhanced sparsity are formed; then, it is proposed to demodulate the time domain signals of the above branches through OTFS to efficiently counter the residual Doppler frequency shift of each branch, and o...
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Abstract
Description
Claims
Application Information
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