OTFS Based Joint Radar and Communication: Signal Analysis Using the Ambiguity Function

被引：1
|
作者：
Dayarathna, Shalanika [1 ]
Smith, Peter [2 ]
Senanayake, Rajitha [1 ]
Evans, Jamie [1 ]
机构：
[1] Univ Melbourne, Dept Elect & Elect Engn, Melbourne, Vic 3010, Australia
[2] Victoria Univ Wellington, Sch Math & Stat, Wellington, New Zealand
来源：
IEEE SIGNAL PROCESSING LETTERS | 2024年 / 31卷
基金：
澳大利亚研究理事会;
关键词：
Radar; Doppler radar; Time-frequency analysis; Radar measurements; Spaceborne radar; Sensors; Radar tracking; OTFS; joint radar and communications; MODULATION; OFDM;
D O I：
10.1109/LSP.2024.3378674
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Orthogonal time frequency space (OTFS) modulation has recently been identified as a suitable waveform for joint radar and communication systems. Focusing on the effect of data modulation on the radar sensing performance, we derive the ambiguity function (AF) of the OTFS waveform and characterize the radar global accuracy. We evaluate the behavior of the AF with respect to the distribution of the modulated data and derive an accurate approximation for the mean and variance of the AF, thus, approximating its distribution by a Rice distribution. Finally, we evaluate the global radar performance of the OTFS waveform with the OFDM waveform.
引用
收藏
页码：919 / 923
页数：5
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