Research And Verification Of Digital Signal Processing Circuit Of Remote Spectrum Analysis Equipment

Advances in information science and technology provide more products to the field of military and commercial applications, simultaneously ask more scenes demand from researchers. For the signal measurement and analysis, the traditional spectrum analyzer sampling a small amount of data, can not analyze massive data, even not analyze signal that scattered in differrnt regions in the same time.Remote spectrum analysis equipment which drawing on the idea of wireless software can collect the signal in the distal end and transmit to a central server for analysis. Thus it can make a comparative analysis of the data from each node at the same time, also can do the data storage to make statistical analysis. Based on the system design of remote spectrum analysis equipment this paper has been completed the research and verification of digital signal processing circuit.Firstly, we make demand and analysis of circuit. We make functional demand and analyze of each module include signal processing module, signal acquisition module, clock module and power module. Then we make performance demand of modules which require high performance include data acquisition module, clock module, power module.Secondly, we complete overall design of circuit. We select FPGA as core device of digital signal processing. In order to reflect the flexibility characteristic we use FPGA + FMC board structure as system architecture. Lastly we complete the chip selection of the core components of each unit.Then, we complete implementation of hardware circuit. Based on the overall design we complete hardware circuit realization including inter-module connection and realize each module. We complete schematic design, then analyze board cooling and complete PCB layout and routing constraints. Lastly we complete card production.Lastly, we complete test of digital signal processing circuit. We build a test platform, make test for digital signal processing circuit. Then we introduce the test environment. We special test the following items: FPGA module, data acquisition circuit functionality and performance testing and display test data. Test results shows that the digital signal processing circuit meet the functional performance requirements.In this paper digital signal processing circuit of remote spectral analysis device is designed and implemented with functional, performance testing of each unit. With its flexibility, reliability, etc. it has been applied to the system remote spectrum analysis device.