applications and advantages of dsp
main applications:
- wireless communications
- multimedia
dsp makes possible storage and retrieval of movies, etc.,
640 * 480 * 3 = 921600, e.g. almost 1 megabyte; at 30fps, almost 30mbyte/sec
but sophisticated compression algorithms make reaching or even exceeding
density of analog storage media possible.
advantages of dsp over asp:
- more programmable, repeatable, modular
- more leverage off microelectronics advances
- more exact implementation of existing math: thus more sophisticated
algorithms can be implemented
- better economy of repurposing (can use more general purpose circuits)
- easy to store, transmit, etc.: no loss of generations
- with new algorithms: better handling of wide dynamic range,
e.g. 10^-323 to 10^308 easy on modern double precision system
- easier to obfuscate source of info (gnapster v. freenet, etc.):
more effective erradication of copyright, etc. (information wants to
be free).