共 50 条
- [31] IMPROVEMENTS OF SIGNAL-TO-NOISE RATIO IN PHOTOMULTIPLIERS INSTRUMENTS AND EXPERIMENTAL TECHNIQUES-USSR, 1971, 14 (06): : 1746 - &
- [32] LIMITER OUTPUT SIGNAL-TO-NOISE RATIO TELECOMMUNICATIONS AND RADIO ENGINEER-USSR, 1968, (07): : 32 - &
- [37] SIGNAL-TO-NOISE RATIO OF RECORDED ECG MEDICAL & BIOLOGICAL ENGINEERING, 1972, 10 (01): : 111 - &