The Stanford University ELF/VLF radiometer project Measurement of the global distribution of ELF/VLF electromagnetic noise
Abstract
The Stanford University ELF/VLF radiometer considered in this paper is a new dual-channel computer-controlled system which provides quantitative measurements of electromagnetic activity in the frequency range from 10 Hz to 32 kHz. Both analog and digital recording are used. Attention is given to the frequency designation, technical details regarding the radiometer, previous ELF/VLF noise measurements, and applications of the noise data. It is pointed out that the Stanford ELF/VLF noise survey will provide new information about the global distribution and temporal variation of ELF/VLF noise. An immediate practical application of the noise measurements is related to communication in the ELF/VLF band. Another possibility, still speculative at this stage, is concerned with earthquake prediction.
- Publication:
-
International Symposium on Electromagnetic Compatibility
- Pub Date:
- 1985
- Bibcode:
- 1985emc..symp..305F
- Keywords:
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- Electromagnetic Noise Measurement;
- Extremely Low Radio Frequencies;
- Radiation Distribution;
- Radiometers;
- Very Low Frequencies;
- Analog Computers;
- Automatic Control;
- Digital Computers;
- Geomagnetism;
- Signal To Noise Ratios;
- Systems Engineering;
- Communications and Radar