The mismatch between the numerical and actual nonlinear models is a challenge to acoustic echo cancellation (NAEC) when adaptive filter utilized. To alleviate this problem, we combine basis-generic expansion of memoryless nonlinearity into semi-blind source separation (SBSS). By regarding all basis functions far-end input signal as known equivalent reference signals, an SBSS updating algorithm ...

In the actual communication system, the line echo is a frequent problem, so the line echo canceller is necessary. Traditionally, the cancellers are designed according to line noises based on the Gaussian noise model. However, the noises do not obey the Gaussian distribution; therefore the performances of algorithms decrease, even cannot be used. In order to solve this problem, this paper propos...

This paper proposes an efficient way of integrating acoustic echo canceller (AEC) and background noise reduction (NR) modules for voice communication systems. The main strategy for designing a standalone AEC or NR module is straightforward, but it is not easy to integrate two modules in a single system because of the undesired effect caused by the nonlinear nature of each module’s output. The p...

Demand estimation for the Bus Market Investigation Overview 1. It is important in any examination of a market to gather information on how consumers behave in that market and to gather information on the factors that affect consumers’ demand for the good or service of interest. In particular, with regard to buses, information on passenger demand can help us measure the extent to which other mod...

This paper presents a comprehensive literature review, a novel pedagogical approach, and plans for developing and testing a collaborative learning environment built upon the capacity of new simulation technologies and augmented reality (AR) for improving sustainable and resilient building design. The project aims at integrating collaborative learning strategies with new simulation technologies ...