基于FPGA的FIR数字滤波器

在现代电子系统中,FIR滤波器因其良好的特性,在数字信号处理领域有着广泛的使用。本文使用Verilog HDL描述了并实现了一种低通特性的FIR滤波器,结合MATLAB工具软件的辅助设计,基于Modelsim平台进行了仿真验证,仿真结果很好的满足了设计要求的幅频特性。     

Factors affecting non‐green consumer behaviour: an exploratory study among Chinese consumers

The purpose of this study was to explore the factors that affect a typical non‐green consumption behaviour among Chinese consumers. A conceptual framework was developed and an empirical study was conducted using a geographically diverse sample of Chinese consumers. Based on the consumer choice theory, the conceptual framework in the current study included both economic and non‐economic factors. Ten research hypotheses were developed under the framework. A survey was conducted among 600 consumers in four cities in China in 2013. Confirmatory factor analysis and hierarchical regression analysis were used for hypothesis testing. The empirical results showed that consumer preference, reference groups, and face perception have a significantly positive effect on the consumers’ non‐green consumption behaviour; whereas budget constraints and social responsibility consciousness have a significantly negative effect on the consumers’ non‐green consumption behaviour. Furthermore, the current research demonstrated that the relationships between consumer non‐green behaviour and its four antecedents – budget constraint, reference groups, social responsibility consciousness and face perception – are significantly moderated by extravagant atmosphere; whereas the relationship between consumer non‐green behaviour and consumer preference is not moderated by extravagant atmosphere.