The Discrete Time ASK Optimum Receivers Using Impulse-Invariant Transformation

• Main Authors: Jim-Rie Tung, 董金瑞
• Other Authors: Rainfield Y. Yen
• Format: Others
• Language: zh-TW
• Published: 1993
• Online Access: http://ndltd.ncl.edu.tw/handle/72378439152017457968

碩士 === 淡江大學 === 資訊工程研究所 === 81 === We apply Digital Signal Processing (DSP) techniques to the design of Amplitude Shift Keying receivers for binary detections . Both coherent and noncoherent detections are considered . In addition , matched filters are used to enhance signal-to-noise ratios ( and thus system performance ) . In designing our digital systems , the technique of Impulse- Invariant Transformation has been used for the digital matched filter . We haved used MATLAB software for system simulation . The input signal plus noise are programed into the system . due to our PC capacity limitation , the input signal used in simulation are restricted to weak sinusoids in the mV range . The input noise is assumed to be wideband Guassian generated from RAND function of MATLAB using 8K Hz sampling frequency accounting for a 4K Hz bandwidth . The system performance resulted from the simulation for our digital system is then compared with the theoretical results for analog counterparts , and the results are consistent with good accuracy .