{"product_id":"wideband-signal-detection-using-a-willie-h-mims-9781249588085","title":"Wideband Signal Detection Using a Down-Converting Channelized Receiver","description":"Ultra wideband (UWB) signals typically occupy a very large spectral bandwidth resulting from extremely short duration pulses. Direct sequence spread spectrum (DSSS) signals typically occupy a large spectral bandwidth resulting from spreading methods. Both signals can be difficult to detect without having prior knowledge of their structure and\/or existence. This research develops and evaluates techniques for the non-cooperative (nonmatched filter) detection of such signals. Impulse-like UWB and DSSS signals are received in an Additive White Gaussian Noise (AWGN) channel and are assessed using a bandpass filtered, down-converting (BPF-D\/C) channelized receiver architecture. Modeling and simulation is conducted to characterize BPF-D\/C channelized receiver detection performance, which is compared with the performance of two other non-cooperative detection receivers: a previously-introduced down-converting (D\/C) channelized receiver and a conventional radiometer. The BPF-D\/C channelized receiver detection performance for both signals of interest is shown to depend on the initial phase of the down-conversion mixers. There are usually some combinations of signal-to-noise ratio (SNR) and channel bandwidth where the BPF-D\/C channelized receiver outperforms the radiometer and D\/C channelized receiver for a UWB pulse. For a DSSS waveform, detection performance using the BPFD\/ C channelized receiver is consistently poorer than radiometric detection.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Willie H. Mims\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 1249588081\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781249588085\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Biblioscholar\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 10\/03\/2012\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 146\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.60lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.69h x 7.44w x 0.31d","brand":"Willie H. Mims","offers":[{"title":"Paperback","offer_id":47611145126143,"sku":"9781249588085","price":57.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_94c58aff-88c2-4a69-a277-912c6d9403a0.jpg?v=1764512029","url":"https:\/\/www.whiterainbookhouse.com\/products\/wideband-signal-detection-using-a-willie-h-mims-9781249588085","provider":"WR Book House","version":"1.0","type":"link"}