Examples of the use of a correlator-type receiver
Examples with the use of matched filters.
A description of matched filters, which is a demodulation technique with LTI filters which achieves maximum SNR.
An analysis of matched filters in the frequency domain.
The integrate-and-dump detector is fundamental to coherent detection, the optimal receiver technique that minimizes bit error rate (BER) for a given signal-to-noise ratio Eb/No. In this project develop a pulse amplitude (PAM) transmitter based on a transmit filter to map a bitstream onto a signaling waveform (rectangular and Manchester pulse shapes), an additive white Gaussian noise (AWGN) channel, and a receiver that implements integrate-and-dump detection. All waveforms throughout the signal processing chain are presented as a stacked chart indicator with a speed control to permit generated waveforms to be studied slowly (i.e., the integrator output ramping up or down) or quickly to process long message bitstreams. Visualizing the critical system signals as waveforms facilitates exploration of the effects of specific values of BER and Eb/No, and promotes deeper understanding of coherent detection.
A performance analysis of correlator-type and matched filter receivers on binary symbol transmission using both orthogonal and antipodal signal sets. Both types of receivers perform identically with the same detection criteria.
Bit-error analysis for an antipodal signal set by using a correlator-type receiver.
Bit-error analysis for an antipodal signal set by using a matched filter receiver.
Bit-error analysis for an orthogonal binary signal set by using a correlator-type receiver.
Bit-error analysis for an orthogonal binary signal set by using a matched filter receiver.
Build a LabVIEW subVI to demodulate a pulse-amplitude modulated (PAM) signal using a correlator.
