Research on narrow pulse generation for ultra-wideband communication

Ultra-wideband(UWB) communication is through sending and detecting extremely narrow pulse sequences to realize communication. Narrow nanosecond pulse generator is a prerequisite for UWB technology. The paper introduces fours kinds of methods to generate UWB narrow pulse, analyzes and compares the characteristics of various methods, and experiments the corresponding simulation. The complexity of the circuit and the pulse wave pattern shows that the pulse generator based on the digital clock manager (DCM) of the FPGA has simple structure, easy to integration, and generates the best pulse wave type. All kinds of pulse generators have its length, and in the circuit design, it should be specific analysis, according to the requirement of the circuit and the actual situation to choose the appropriate circuit, and further optimize the circuit so as to achieve the design requirements.