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| Matched Filter× | Design af FIR-filtre× | |
|---|---|---|
| Fagområde | Signalbehandling | Signalbehandling |
| Familie | Process / pipeline | Process / pipeline |
| Oprindelsesår≠ | 1943 | 1987 |
| Ophavsperson≠ | D. O. North | Thomas W. Parks and C. Sidney Burrus |
| Type≠ | Optimal filter for signal detection | Finite Impulse Response filter design |
| Oprindelig kilde≠ | North, D. O. (1943). An Analysis of the Factors Which Determine Signal/Noise Discrimination in Pulsed Carrier Systems. RCA Laboratories, Technical Report PTM-946. link ↗ | Parks, T. W., & Burrus, C. S. (1987). Digital Filter Design. John Wiley & Sons. link ↗ |
| Aliasser | Correlation Detector, Optimal Filter Detection, Template Matching | FIR Design, Finite impulse response, Non-recursive filter design |
| Relaterede | 4 | 4 |
| Resumé≠ | The matched filter is an optimal signal detector that maximizes the signal-to-noise ratio (SNR) for detecting a known signal in additive Gaussian noise. Developed by D. O. North during World War II for radar applications, the matched filter represents the optimal linear filter for signal detection and remains the foundation for detection theory and digital communications. | Finite Impulse Response (FIR) filters are digital filters with an impulse response that settles to zero in finite time, making them fundamentally stable and easy to analyze. Unlike their IIR counterparts, FIR filters are inherently stable, can have exactly linear phase response, and are widely used in applications from audio processing to telecommunications where phase distortion must be minimized. |
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