Staggered Comb Reference Signal Design for Integrated Communication and Sensing
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866913328461250560 |
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| author | Zhang, Rui Tsai, Shawn Chou, Tzu-Han Ren, Jiaying |
| author_facet | Zhang, Rui Tsai, Shawn Chou, Tzu-Han Ren, Jiaying |
| contents | Ambiguity performance is a critical criterion in radar sensor design, which indicates the ambiguities arising from multiple target estimation and detection. We considered a requirement-driven selection of OFDM reference signal (RS) patterns based on ambiguity performances for bi-static sensing in integrated communication and sensing with minimal modifications of current RSs. An RS pattern with a staggering offset of a linear slope that is relatively prime to the RS comb size is suggested for standard-resolution sensing algorithms to obtain the best ambiguity performances. Moreover, an extended guard interval design is proposed to increase the maximum time delay, that is inter-symbol interference (ISI) free using post-FFT sensing algorithms. The proposed techniques are promising to extend the distance and speed without ambiguities and ISI for sensing. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2401_09648 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Staggered Comb Reference Signal Design for Integrated Communication and Sensing Zhang, Rui Tsai, Shawn Chou, Tzu-Han Ren, Jiaying Signal Processing Networking and Internet Architecture Ambiguity performance is a critical criterion in radar sensor design, which indicates the ambiguities arising from multiple target estimation and detection. We considered a requirement-driven selection of OFDM reference signal (RS) patterns based on ambiguity performances for bi-static sensing in integrated communication and sensing with minimal modifications of current RSs. An RS pattern with a staggering offset of a linear slope that is relatively prime to the RS comb size is suggested for standard-resolution sensing algorithms to obtain the best ambiguity performances. Moreover, an extended guard interval design is proposed to increase the maximum time delay, that is inter-symbol interference (ISI) free using post-FFT sensing algorithms. The proposed techniques are promising to extend the distance and speed without ambiguities and ISI for sensing. |
| title | Staggered Comb Reference Signal Design for Integrated Communication and Sensing |
| topic | Signal Processing Networking and Internet Architecture |
| url | https://arxiv.org/abs/2401.09648 |