Power Envelope Shaper
Abstract
A power envelope shaping device for joining to a serial control output is disclosed. Multiple power switcher modules are joined to a plurality of incremental power sources and controlled by the power select circuitry module. In this way, each power switcher module can provide power from at least one of the incremental power sources on command from said power select circuitry module. The power switcher module outputs are joined together in order for providing varying power levels in accordance with a preprogrammed power envelope shape. In a further embodiment, there is provided a sonar system comprising a computer for system control, a power envelope shaper, a transmitter module, and a transducer array. The power envelope shaper receives control signals from the system computer. These control signals, serial data and data clock, are processed by a power level decoder, which enables a selected output channel at the appropriate time. Each power switcher channel controls a single tap of the battery pack by enabling and disabling its output. The output power from the power switcher is fed directly to a sonar transmitter and controls the amplitude of the acoustic sonar signal. The computer provides the serial data control signals to the power switcher, using fast switching speeds thereby allowing for the production of different sonar envelope shapes. The particular envelope shape may be immediately modified by software to produce Gaussian or other power envelope shapes.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 14, 1999
- Accession Number
- ADD019353
Entities
People
- David R. Costa
- Seth B. Suppappola
Organizations
- United States Department of the Navy