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AssigneeTelemus Electronic Systems, Inc.
InventorsAndre Gagnon, Myles McMillan, P. Michael Gale
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A method and apparatus for performing simultaneous instantaneous signal frequency measurement using a signal sorter in conjunction with a frequency measurement receiver. Simultaneous signals of similar amplitude are received and successively applied to a plurality of either frequency or time dependent signal modifying circuits, via switching circuitry. Respective ones of the received signals are separated with respect to frequency in one or both of amplitude and time from one another via the signal modifying circuits which can be, for instance low pass and high pass filters, or positive and negative dispersive delay lines. In addition, the received signals are applied to a straight-through signal path for transmitting the signals to the frequency measurement receiver unaltered. Signals output from the signal modifying circuits and the straight-through signal path are successively applied to the frequency measurement receiver for detecting the frequency of respective ones of the separated received signals.
A signal sorter, comprised of:
A circuit for detecting the frequencies of a pair of simultaneous substantially equal amplitude signals, comprised of:
A simultaneous instantaneous signal frequency measurement circuit, comprised of:
A method of separating simultaneous signals having different frequencies and similar amplitudes, comprising the steps of receiving said signals, and successively applying said received signals to respective ones of a plurality of signal modifying means, each signal modifying means including means for isolating a predetermined one of said received signals from the other ones of said signals, and in response generating an output signal corresponding to said isolated one of said simultaneous signals separated in time and frequency from said other ones of the signals, further including the step of dispersively delaying time coincident ones of said simultaneous signals by predetermined lengths of time proportional to their respective frequencies.
A method of separating simultaneous signals having different frequencies and similar amplitudes, comprising the steps of receiving said signals, and successively applying said received signals to respective ones of a plurality of signal modifying means, each signal modifying means including means for isolating a predetermined one of said received signals from the other ones of said signals, and in response generating an output signal corresponding to said isolated one of said simultaneous signals spearated in time and frequency from said other ones of the signals, further including the step of filtering similar amplitude ones of said simultaneous signals for amplifying said predetermined one of said signals while attenuating the other ones of said signals.
Dependencies are inferred from the claim text.