Digital Code Tracking Loops Over Frequency-Selective Fading Channels

Performance Analysis of a Complex Multicode Tracking Loop in Bandlimited Rayleigh Fading Channels

“…A complicated multipath interference cancellation mechanism in the tracking loop analyzed in [21]. In spite of the structure differences the majority of existing literatures focus on the conventional single-code spread DS/SS or navigation systems.…”

Performance analysis of optimum receivers for fast frequency-hopped systems over composite interference and fading channels with imperfect side information

“…Both the desired signal and the MTI are assumed to experience independent frequency-selective Rayleigh fading. In this thesis, to simplify the derivations and the analyses, we can sum up all possible non-line-of-sight paths and then split them into two main clumps to model the Rayleigh frequency-selective fading channel or the Rayleigh component of the frequency-selective Rician-fading channel as the two-path model [52], [78], [79].…”

“…Besides [52], [78] and [79], the used frequency-selective model is also widely adopted in research works of [80]- [82] to model frequency-selective fading channels due to its analytical simplicity. In [80], a new scheme of fractional-bit differential detection of minimumshift-keying was proposed in order to reduce timing fluctuation of eye patterns, which is found to be a cause of abnormally long burst errors in a frequency-selective fading channel.…”

“…where s l (t) denotes the desired signal, and J µ (t) and J ′ µ clumps for forming these two paths [52], [78], [79]. The two-path model is also widely adopted in the research works of [80]- [82] to model frequency-selective fading channels due to its analytical simplicity.…”