Mismatched filtering of odd-periodic binary sequences |
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Authors: | Luke HD Busboom A |
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Institution: | Inst. fur Elektrische Nachrichtentech., Aachen Univ. of Technol., Germany; |
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Abstract: | Binary sequences with perfect periodic autocorrelation functions, as required in communications, radar, and measuring, are not known for any lengths >4. As a possible remedy, mismatched filtering can be used to entirely suppress any sidelobes of the periodic autocorrelation function at the expense of a reduced signal-to-noise ratio (SNR). In this work, the mismatched filtering method is extended to the odd-periodic autocorrelation function whose technical implementation is no more complex than that of periodic sequences. A new class of odd-periodic binary sequences is constructed that exist for many more lengths and exhibit significantly lower mismatched filtering losses than any known periodic sequences |
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