Linked from
The 68 pages that link to Signal-to-noise ratio, each with the reason it gives.
RadarRelated: Echoes must stand out from noise for radar to detect targets reliably.
Analytical chemistryRelated: Noise constrains how small a chemical signal can be measured reliably.
PhotometryRelated: It sets the precision with which source brightness can be determined.
Radio receiverRelated: It helps determine whether the receiver can recover usable information.
BandwidthRelated: It works with bandwidth to set the theoretical capacity of a noisy channel.
DecibelRelated: It is commonly reported in decibels to compare signal strength with noise.
Dynamic rangeRelated: Noise sets the lowest signal level that can be distinguished in many systems.
Analog signalRelated: Noise can obscure small variations in an analog signal.
Digital-to-analog converterRelated: It describes one limit on the usable fidelity of a DAC output.
SoundscapeRelated: It helps explain whether a voice or other target stands out from ambient sound.
Pattern recognitionRelated: Noise can obscure the regularities a recognition system must detect.
Acoustic monitoringRelated: Low signal-to-noise ratios hide calls and reduce reliable detection.
TelemetryRelated: Interference can obscure transmitted measurements and reduce their reliability.
Shannon–Hartley theoremRelated: In the theorem, capacity rises logarithmically with this ratio.
Precision measurementRelated: Noise limits how finely an instrument can distinguish a quantity.