Boon Chong Ng

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—This paper investigates the dynamic property of a tropical forested channel due to the weather effect on very high frequency (VHF) and ultrahigh frequency (UHF) radio-wave propagation. In this paper, continuous-wave (CW) envelope fading waveforms are recorded over a period of 50 s with static antennas. This paper focuses on the analysis of the combined(More)
This paper describes a direct equalization approach for channels with some underlying structure. A semi-blind approach is taken here where a small amount of training symbols is available. A family of MMSE equalizers is obtained that includes some prior information about the channel structure. The channel structure assumed in this paper is that the channel(More)
The correlation lower bounds, as well as the set size upper bounds, of low-correlation-zone complementary sequences are presented in this paper. They can be treated as an extension of Tang-Fan-Matsufuji bounds in [2] and [3], which considered only the conventional (non-complementary) low-correlation-zone sequence sets. I. INTRODUCTION Low Correlation Zone(More)
This letter describes a channel estimator using known prior information about the transmit and receive lters. It is shown that the composite channel lies in the subspace of the transmit and receive lter impulse responses. A struc-tured linear channel model is then developed that is linearly parametrized by an unknown vector. To illustrate the potential(More)