matched filter


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matched filter

[′macht ′fil·tər]
(computer science)
In character recognition, a method employed in character property detection in which a vertical projection of the input character produces an analog waveform which is then compared to a set of stored waveforms for the purpose of determining the character's identity.
(electronics)
A filter with the property that, when the input consists of noise in addition to a specified desired signal, the signal-to-noise ratio is the maximum which can be obtained in any linear filter.
References in periodicals archive ?
Transmitter detection technique is further classified into energy detection, matched filter detection and Cyclo-stationary feature detection.
K]] denotes the output of the AWGN from each user's corresponding matched filter, while the random variable nk is normally distributed and E[[n.
Whereas, the matched filter technique has shown good performance and high accuracy at the expense of more complexity and requires perfect knowledge.
The matched filter easily generalizes to communications receivers, incorporating channel estimation and equalization.
Thomas, "Sidelobe reduction for matched filter range processing," Proceedings of IEEE Radar Conference, 446-451, 2003.
2](t) are the matched filter outputs for the ideal and erroneous pulses, respectively.
The proposed receiver consists of a matched filter followed by a blind [lambda]-combiner that is capable to estimate the value of [lambda] blindly and adaptively for each received bit.
FIR mainly functions are as a shaping filter for the whole signal channel and as well as a matched filter when there is need.
Peng and Zhao used a method known as the matched filter technique, rather than the standard technique to examine the aftershocks.