A study of modulation for digital mobile telephony
- 1 January 1979
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 29, 13-19
- https://doi.org/10.1109/vtc.1979.1622659
Abstract
This paper describes a digital modulation technique for VHF and UHF land mobile telephony. After describing the requirements of voice coding and digital modulation for the narrowband digital voice transmission in the VHF and UHF land mobile radio channels, the feasibility of digital mobile telephony is clarified by showing the realizability of a digital modulation satisfying the requirements and supported by a few of the experimental test results. The remained technical problems, which should be solved in the near future, are enumerated.Keywords
This publication has 15 references indexed in Scilit:
- Microprocessor realization of a linear predictive vocoderIEEE Transactions on Acoustics, Speech, and Signal Processing, 1977
- A variable band coding scheme for speech encoding at 4.8 kb/sPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1977
- Digital voice considerations for the land-mobile radio servicesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1977
- On the design of sub-band coders for low bit rate speech communicationsThe Journal of the Acoustical Society of America, 1976
- Pulse and Spectrum Manipulation in the Minimum (Frequency) Shift Keying (MSK) FormatIEEE Transactions on Communications, 1976
- Step-Size Transmitting Differential Coders for Mobile TelephonyBell System Technical Journal, 1975
- Use of Four-Level Phase Modulation for Digital Mobile RadioIEEE Transactions on Electromagnetic Compatibility, 1972
- Coherent Demodulation of Frequency-Shift Keying with Low Deviation RatioIEEE Transactions on Communications, 1972
- A Simple Method of Calculating the Characteristics of FSK Signals With Modulation Index 0.5IEEE Transactions on Communications, 1972
- The Effects of Filtering and Limiting a Double-Binary PSK SignalIEEE Transactions on Aerospace and Electronic Systems, 1969