| 贾艳云,赵航芳.双扩展信道中的时延-多普勒匹配滤波[J].,2012,31(1):66-74 |
| 双扩展信道中的时延-多普勒匹配滤波 |
| Delay-Doppler matched filter in doubly spread channels |
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| 中文摘要: |
| 本文研究了时延和多普勒在信号和信道分析中的重要作用,论述了信号和信道的时延—多普勒性质,并进行了表征。信号的模糊度函数可用于指导发射波形设计,而广义平稳非相关散射条件下信道的散射函数则可用于指导信道估计。在此基础上,提出了发?收联合时延?多普勒匹配滤波框架,得出了发射?处理波形的互模糊度函数与信道散射函数在时延?多普勒平面内的重叠面积与系统性能成正比的结论。计算机仿真结果验证了本文方法的有效性。 |
| 英文摘要: |
| This paper studies the method of using time delay and Doppler properties for signal and channel analyses.The time delay-Doppler properties of signal and channel are discussed and characterized.The ambiguity function of signal can be used to the design the transmitted waveform.Under the wide sense stationary uncorrelated scattering conditions,the channel scattering function can be used to guide channel estimation.Based on that,the joint transmitter-receiver optimization framework for delay-Doppler matched filter is proposed.It is concluded that the Overlapping area of cross-ambiguity function of transmitting-processing waveform and channel scattering function is proportional to the system performance.This method is verified by numerical simulation. |
| DOI：10.11684/j.issn.1000-310X.2012.01.017 |
| 中文关键词: 双扩展信道 互模糊度函数 信道散射函数 时延 多普勒匹配滤波 |
| 英文关键词: Doubly spread channels Cross-ambiguity function Channel scattering function Time delay-Doppler matched filter |
| 基金项目: |
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