The if digital receiver based on software radio technology adopts the structure of fpga plus dsp , which is more powerful than other systems in signal processing , and is able to complete iq demodulation accurately and acquire characteristic of the signal . the following four aspects is included : 该中频数字接收机以软件无线电思想为核心,采用dsp + fpga的硬件结构,在信号处理能力方面比以往的系统有了很大的提高,能够精确的完成信号正交解调和抽取滤波和特征信息的提取。
In addition , this paper discusses the application of the parameter - induced stochastic resonance in the m - ary pam signal transmission , and explains the mechanism to stochastic resonance in a new view . we found that the single well is able to distinguish different signal levels , based on which the theory for m - ary pam signal transmission via parameter - induced stochastic resonance was briefly developed . the error code rate of m - ary pam signal was obtained 此外，本文还初步探讨了参数诱导的随机共振在多进制数字调制信号传输中的应用，从不同的观点解释随机共振形成的机理，充分认识到非线性系统单势井的信号处理能力，并给出多进制信号误码率的理论公式，仿真实验表明这个研究方向具有很好的研究前景。
This comprehensive motor protection system uses 80c196ks 16bits mcu as its cpu , making full use of it ' s powerful capture function to outside event and strong ability of treatment to signal to design a new type of motor protective device . this comprehensive motor protection system construct a profibus station using profibus protocol chip spc3 and 89c52 本文设计的电机综合保护系统以80c196kc16位单片机为核心,充分利用其强大的信号处理能力,结合电机保护理论完成了具有故障诊断与保护功能的新型电机综合保护系统的设计。
The general electronic warfare reconnaissance receiver , at the same time the multi - signal processing ability is weak , it only can do single signal processing per time . to process more signals , common receivers use pipeline and time - sharing method which is totally unsuitable for the extremely complicated electromagnetic environment in the modern war 通常的电子战侦察接收机,同时多信号处理能力比较弱,同一时刻只能处理一个信号,而对多信号的处理只能采用流水作业的办法进行时分处理,这已不能适应日益复杂的电磁环境下的信息化战场需求。
Data processing unit , as a node of the lonworks network , has the ability to process many types of signal and communicate with lonworks network . the unit not only makes the data exchanging between the system and outside of it but also integrates the devices with different output signals or different communication protocols in one system 作为lonworks现场测控网的一个节点，它具有的多种信号处理能力及与lonworks网络通讯能力实现了系统与外界的信息沟通，并可把具有不同信号类型和不种通讯协议标准的仪表集成到同一个控制网络中。
