Nonlinear Array Hydrophone Simulator.
Abstract
The patent application describes a device for simulating time delayed outputs resulting from impingement of a point source of sonic energy upon a nonlinear array of hydrophones. An acoustic signal generator provides an analog output signal to a pulse forming circuit which converts the analog signal to a series pulse train which is fed to a shift register clocked at a rate in accordance with the time delays between the hydrophones. Selected outputs from the register are reconverted to analog signals by individual wave forming circuits assigned to each of the shift register outputs. A plurality of noise generators provide noise signal outputs which are independently added to the reconverted analog signals to form a plurality of selectively delayed signals simulative of hydrophone outputs having both signal and noise components, the delays being variable to simulate different angles of sonic energy approach by selection of appropriate shift register outputs.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 02, 1974
- Accession Number
- ADD001254
Entities
People
- Michael M. Kijesky
Organizations
- United States Department of the Navy