VLF-Propagation Measurement Technique Using Repetitive Pulse Spectral Lines.
NAVAL WEAPONS CENTER CHINA LAKE CALIF
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A concept is presented which utilizes the spectral sidebands of VLF repetitive-pulse transmission to greatly increase the number of frequencies available for VLF sounder measurements. A theoretical analysis of the concept is developed, the prototype equipment is described, and samples of VLF sounder data acquired in the initial field-test evaluation are given. Author
- Radiofrequency Wave Propagation