books.google.ca - The definitive engineer's guide to designing and building software-based radios.The first systematic guide to software radio design and implementationMultirate DSP, RF front-ends, direct digital synthesis of modulated waveforms, A/D and D/A conversion, and moreEnhancing performance through smart antennas...http://books.google.ca/books/about/Software_radio.html?id=7-XJOmNvAOkC&utm_source=gb-gplus-shareSoftware radio