ELF Nonlinear Noise Processing Experimental Measurements, Part 2 - Synoptic Sample of Diurnal and Seasonal Noise Variation in Norway

• Main Authors: Davis, John R., Meyers, William D.
• Other Authors: NAVAL RESEARCH LAB WASHINGTON DC
• Format: Text
• Language: English
• Published: 1976
• Subjects: Radiofrequency Wave Propagation; Radio Communications; *SIGNAL PROCESSING; *SIGNAL TO NOISE RATIO; *EXTREMELY LOW FREQUENCY; *ATMOSPHERICS; MEASUREMENT; NONLINEAR SYSTEMS; NORWAY; RADIOFREQUENCY INTERFERENCE; PERIODIC VARIATIONS; Norway; Tromso
• Online Access: http://www.dtic.mil/docs/citations/ADA033402; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA033402

Using a suitable nonlinearity in the input stage of an extremely low frequency receiver can improve received signal-to-noise ratio S/N by whitening the nongaussian atmospheric noise at these frequencies. Previous studies indicate that performance of simple clippers, carefully adjusted on the basis o...