摘要
首先根据实信号信道化发射机的实现原理,推导出了这种发射机的真实信道中心频率和信道间隔的计算公式。然后推导了抽取器和内插器的多相滤波结构,建立了基于多相滤波的实信号信道化发射机的数学模型。最后讨论了这种高效的基于多相滤波的实信号信道化发射机的可实现性,并给出了这种发射机的两例计算机仿真。仿真结果验证了前面推导出的发射机数学模型和真实信号中心频率公式的正确性。
The paper,based on implementation principle of the real signal channelized transmitter,deduces the calculation formula for the center frequency and the channel space of this real channel;then the polyphase filters structure of the decimator and interpolator,thus to establish the mathematical model of channelized transmitter based on polyphase filters;finally,discusses the feasibility of this highly efficient real signal channelized transmitter based on polyphase filters and gives two computer simulations of this transmitter.Simulation results indicate the correctness of this transmitter mathematical model and the real-channel center frequency formula.
出处
《通信技术》
2012年第4期27-30,共4页
Communications Technology
关键词
实信号
信道化发射机
多相滤波
计算机仿真
real signal
channelized transmitter
polyphase filter
computer simulation
