High resolution time of arrival estimation for a cooperative sensor system

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<p><strong>Abstract.</strong> Distance resolution of cooperative sensors is limited by the signal bandwidth. For the transmission mainly lower frequency bands are used which are more narrowband than classical radar frequencies. To compensate this resolution problem the combination of a pseudo-noise coded pulse compression system with superresolution time of arrival estimation is proposed. Coded pulsecompression allows secure and fast distance measurement in multi-user scenarios which can easily be adapted for data transmission purposes (Morhart and Biebl, 2009). Due to the lack of available signal bandwidth the measurement accuracy degrades especially in multipath scenarios. Superresolution time of arrival algorithms can improve this behaviour by estimating the channel impulse response out of a band-limited channel view. For the given test system the implementation of a MUSIC algorithm permitted a two times better distance resolution as the standard pulse compression.</p>




Morhart, C., & Biebl, E. M. (2010). High resolution time of arrival estimation for a cooperative sensor system. Advances in Radio Science, 8, 61–66. https://doi.org/10.5194/ars-8-61-2010

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