Channel estimation in a spread spectrum receiver
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专利名称：Channel estimation in a spread spectrum
receiver
发明人：Brima Ibrahim,Prasanna Desai
申请号：US10243857
申请日：20020913
公开号：US07301993B2
公开日：
20071127
专利内容由知识产权出版社提供
专利附图：
摘要：A method and apparatus for channel estimation in a spread spectrum receiver include processing that begins by despreading a received spread spectrum complex baseband sample utilizing a pseudorandom spreading sequence to produce a despread
baseband symbol. The processing continues by filtering the despread baseband symbol to attenuate adverse channel effects based on a channel response estimate to produce a filtered despread baseband symbol. The processing then continues by decoding the filtered despread baseband symbol to produce recaptured data. The processing continues by modulating the recaptured data to produce a remodulated symbol. The processing then continues by producing a reconstructed spread spectrum complex baseband sample from the remodulated symbol based on the pseudorandom spreading sequence. The processing then continues by generating the channel response estimate such that a convolution of the channel response estimate with the reconstructed spread spectrum complex baseband sample substantially emulates the received spread spectrum complex baseband sample.
申请人：Brima Ibrahim,Prasanna Desai
地址：Los Angeles CA US,San Diego CA US
国籍：US,US
代理机构：Garlick Harrison & Markison
代理人：Timothy W. Markison,Bruce E. Stuckman
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