Effect of filtering on MSK signals
Abstract
The effect of transmitter or channel filtering on minimum shift-keyed signals is examined. Expressions for the SNR at the demodulator output are derived and simplified to integrals in the frequency domain. Extensive numerical results for degradation in SNR as a function of filter bandwidth, bandspreading chip rate, mistuning, and type of compensation at the receiver are presented. The degradation in SNR included here is caused by simple power loss due to bandlimiting, interchip interference, and nonoptimum compensation at the receiver. The types of compensation considered include ideal matching as well as phase and envelope delay. The case with no compensation at the receiver is also included.
- Publication:
-
National Telecommunications Conference, Volume 2
- Pub Date:
- 1975
- Bibcode:
- 1975ntc.....2...30V
- Keywords:
-
- Linear Filters;
- Phase Shift Keying;
- Signal Distortion;
- Signal To Noise Ratios;
- Transmission Efficiency;
- Bandwidth;
- Electromagnetic Interference;
- Energy Dissipation;
- Frequency Response;
- Instrument Compensation;
- Performance Prediction;
- Phase Demodulators;
- Signal Processing;
- Communications and Radar