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专利名称：SPREAD-SPECTRUM RECEIVER WITH
PROGRESSIVE FOURIER TRANSFORM
发明人：Scott A. McDERMOTT申请号：US11739377申请日：20070424
公开号：US20120069870A1公开日：20120322
专利附图：
摘要：A receiving system dynamically searches the communications band fortransmissions of messages having the same nominal communications parameters,including the use of the same spreading code, but having potentially different specific
frequencies and code-phases. The receiver, which is independent of the transmitters,samples the communications band at each code-phase of the spreading code over a spanof downconverted transmission frequencies. When a message element is detected at aparticular code-phase and frequency, it is forwarded to a demodulator that demodulatesthe message and sends it to its intended destination. In a preferred embodiment, aprogressive Fourier Transform is used to incrementally determine the power level ateach successive code-phase at a given frequency, thereby substantially reducing the timerequired to search for transmissions at each discrete code-phase.
申请人：Scott A. McDERMOTT
地址：Washington DC US
国籍：US
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