HP 5990-5392EN free download

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Simulation and Verification of Pulse Doppler Radar Systems Application Note Dingqing Lu, Agilent Technologies Inc., USA Modern radar systems that operate in environments with strong clutter, noise and jamming require advanced digital signal processing techniques. Direct analysis techniques often fail when designing such complex systems. Although simulation is often used, most simulation tools do not have enough models and integration capability to handle modern radar systems. Introduction This application note proposes a solution to this dilemma, a system-design methodology that uses SystemVue. Examples will be used to illustrate how advanced Pulse Doppler (PD) surveillance radar with moving target detection (MTD) and a constant false alarm rate (CFAR) processor can be designed by using a platform in the SystemVue tool. To ensure the design works properly, the platform can be connected to instrumentation for system test and verification. This allows users to reduce their system development time and cost, while also decreasing their chances of unexpected system failures late in the system development process. 1.0 System Design Challenges Advanced radar systems are very complex, necessitating sophisticated signal processing algorithms. Effective algorithm creation requires both a platform for simulation and for verification. Models for signal generation, transmission, anten- nas, T/R switching, clutter, noise, jamming, receiving, signal processing, and measurements are also needed to create advanced algorithms. Most simulation tools do not have enough models and the integration capability needed to design such complex algorithms. SystemVue provides an effective and efficient environment for algorithm creation. 2.0 Signal Processing Algorithm Creation Stage 2. Implement and test the algorithm in hardware. The system-design methodology proposed below uses SystemVue. It concentrates on algorithm design for PD After the algorithm testing and verification are finished, it radar systems. The development of MTD and CFAR pro- needs to be implemented in hardware. To accomplish this cessors in a time-efficient manner are used as examples task, a hardware test platform must be created. to better understand this methodology. To address these needs when creating the MTD and To begin, consider the tasks undertaken by the radar DSP CFAR processor, a platform that provides the following algorithm designer, which typically breaks down into the functionality is required: following two stages: