Digital Phase-Locked Loop Response to a Noisy Fm Signal

Abstract

A simple method, based on discrete time analyses, for evaluating the mean-square error of a digital phase-locked loop in response to an FM signal has been presented. Also discussed is the threshold behaviour of the DPLL FM-Demodulator. Experimental findings have been supplemented in support of the theoretical predictions.

Indexing Terms:

• Communication Technology
• PLL
• FM
• Discrete Time

Additional information

Notes on contributors

T. Majumdar

Majumdar, T: Born in India on May 18, 1951. He received his BSc (Hons) and MSc degrees in Physics both from the University of Burdwan in 1971 and 1973 respectively. He joined the University of Burdwan in May 1976 as a Junior Research Fellow. Now he is working as a Senior Research Fellow (CSIR) in the field of digital communication systems for his doctoral dissertation. He has published about eleven papers in different Indian and foreign journals of repute and also presented papers at different seminars and symposia.

B.C. Sarkar

Sarkar, B C: Born on February 12, 1954. He received his BSc (Hons) and MSc degrees both in Physics from the University of Burdwan in 1973 and 1975 respectively. He joined the Graduate School of the Burdwan University in the year 1978 as a research fellow. His research interest centres around the field of Space Communications and Control Systems. Mr. Sarkar is currently associated with a research project sponsored by the Indian Space Research Organisation, Department of Space, Government of India and is working for his doctoral dissertation. He has published several papers in different reputed in-land and foreign journals.

A.K. Bhattacharya

Bhattacharya, A K (Dr): Born on October 2, 1951. He did his BSc (Hons), MSc and PhD degrees in Physics all from the University of Burdwan in 1970, 1972 and 1980 respectively. Dr. Bhattacharya joined the Department of Physics, Burdwan University, in the year 1975 as a research fellow. Now he is working as a Research Associate. His research activities centre around the field of Communication and Control Systems and Non-linear Oscillations. He has published twenty papers in different foreign and Indian journals of repute. He has presented research papers at different seminars and symposia.

S.K. Ray

Ray, S K (Dr): Born in India on September 9, 1942. He received his BSc (Hons), MSc and PhD degrees all in Physics from the University of Burdwan, in 1962, 1964 and 1976 respectively. He was appointed a Lecturer and subsequently a Reader in Physics by the Graduate School of the University of Burdwan in 1965 and 1978 respectively. For the last ten years, he is conducting research work on the non-linear oscillations and analog and digital phase-locked loops. He has published more than twenty research papers in different inland and foreign journals. Dr. Ray is the co-investigator of a number of research projects supported by UGC, ISRO and DST, Government of India.

B.N. Biswas

Biswas, B N (Dr): Born in India on January 2, 1937. He is presently associated with the faculty of science, the University of Burdwan. During 1969 and 1970, he went to the University of Minnesota, Minneapolis, USA as a visiting assistant professor. For the last eighteen years, he has been conducting and supervising research works on phase-locked loops and non-linear oscillations. Many times he has been invited to present papers and deliver talks at various symposia and seminars conducted in India and abroad. Professor Biswas has been invited to act as a reviewer of a number of reputed in-land and foreign journals. Currently, he is engaged in carrying out a number of research projects supported by UGC, ISRO, CSIR, and DST. He has published more than fifty papers in in-land and foreign journals.