слона то ты и не приметил ссылки ведут вот сюда:
http://dttsp.sourceforge.net
а там написано вот чего:
DttSP is an open source project started by Dr.Frank Brickle and Dr. Robert McGwier of the DTTS Microwave Society to provide code to be used in various DSP projects with an emphasis on Software Defined and Cognitive Radio.
DttSP is the digital signal processing powering the SDR-1000: Flex Radio and we are contributors active contributors to the open source project associated with it.