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It is well known that only a special class of bandpass signals, called real-zero ͑RZ͒ signals can be uniquely represented ͑up to a scale factor͒ by their zero crossings, i.e., the time instants at which the signals change their sign. However, it is possible to invertibly map arbitrary bandpass signals into RZ signals, thereby, implicitly represent the bandpass signal using the mapped RZ signal's zero crossings. This mapping is known as real-zero conversion ͑RZC͒. In this paper a class of noveldoi:10.1121/1.1405523 pmid:11757932 fatcat:vk2tsekrqje3thly7tw7qogklu