Measurement of communications channel parameters in systems for transmitting discrete information
Abstract
A procedure is presented for synthesizing suboptimal devices for measuring the signal-to-noise ratio or other communications-channel parameters which carry information on the noise stability of discrete-information transmission systems. The input signal to the measurement device is a series of readouts of demodulator analog output signals. Noise is assumed to be normal and additive. Synthesis of the suboptimal device is in two stages: first, definition of sufficient statistics, then, determination of a nonlinear transformation which will operate on the statistics to yield an unbiased estimate of the measured parameter.
- Publication:
-
Priborostroenie
- Pub Date:
- 1974
- Bibcode:
- 1974Prib...17...16G
- Keywords:
-
- Channels (Data Transmission);
- Demodulators;
- Digital Systems;
- Network Synthesis;
- Pulse Communication;
- Signal To Noise Ratios;
- Adaptive Filters;
- Algorithms;
- Analog Data;
- Computer Techniques;
- Maximum Likelihood Estimates;
- Measuring Instruments;
- Network Analysis;
- Optimization;
- Signal Measurement;
- Communications and Radar