Joint demodulation of low-entropy narrowband cochannel signals
MetadataShow full item record
Introducation to cochannel signals: many receivers today operate in an interference-limited environment. In a dense signal environment, the performance of a receiver is limited by interference from multiple signals at the receiver rather than signal-to-noise ratio. In the interference-limited environment, there is a diminishing return from investing additional resources into improving traditional receiver parameters such as noise figure. Advanced processing techniques exist that can help recover information that would otherwise be lost using a single-channel receiver. This work investigates some of these techniques. Interference may originate from many sources, such as users on the same or adjacent frequency band, unintended emissions, and intermodulation. This work investigates interference from cochannel information bearing signals. Cochannel interference is commonly defined as the reception of two or more signals at the receiver overlapping in frequency and in time.
Showing items related by title, author, creator and subject.
Signals of Interest Recovery With Multiple Receivers Using Reference-Based Successive Interference Cancellation for Signal Collection Applications Romero, Ric A.; Rios, Alexander; Ha, Tri. T. (IEEE, 2014-08-08);In this paper, we introduce a novel but intuitive scheme to recover multiple signals of interest (SoI) from multiple emitters in signal collection applications such as signal intelligence, electronic intelligence, and ...
Error probabilities of fast frequency-hopped FSK with self-normalization combining in a fading channel with partial-band interference Robertson, R. Clark; Ha, Tri T. (IEEE, 1992-05);An error probability analysis is performed for a binary orthogonal frequency-shift-keying (FSK) receiver employing fast frequency-hopped spread-spectrum waveforms transmitted over a frequency-nonselective slowly fading ...
Detection of a low power communication signal in the presence of a strong co-channel TV broadcast interference using Kalman filter Sajid, Attique (Monterey, California: Naval Postgraduate School, 2014-12);This research focuses on the detection of a low power communication signal in the presence of a strong co-channel television broadcast interference signal. The presence of strong co-channel interference makes the recovery ...