UWB channel blind estimation method based on channel shortening

Ma, Hualong; Wang, Xiande; Lu, Yunjun; Tian, Lai

doi:10.1109/icsgsc.2017.8038596

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2023

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“…A negative effect of incoherent summation is that the signal at the receiving point acts as an interference on itself, which raises the question of developing various methods for equalizing the channel response. Actually, equalization is also a kind of digital filtering [32][33][34][35][36][37][38][39][40][41].…”

Section: Introductionmentioning

confidence: 99%

Filtering and Detection of Ultra-Wideband Chaotic Radio Pulses with a Matched Frequency-Selective Circuit

Kuzmin

Ефремова

2023

Electronics

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An approach is proposed to the filtering of an additive mixture of ultra-wideband chaotic signals and white Gaussian noise, in order to retrieve the useful signal in the receiver. The role of the filter is performed by a passive frequency-selective circuit, identical to the one involved in the formation of oscillations in the chaos generator. A mathematical model of a modulating chaos generator, detecting and receiving a sequence of ultra-wideband chaotic radio pulses in a noisy channel is designed. For the receiver of sequences of symbols encoded by chaotic radio pulses with 2- and 4-position modulation, the bit error ratio as a function of the noise level and the pulse duration is estimated numerically.

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