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The tip clearance measurement system can accurately measure the spacing between the engine blade and the turbine shell. One of the measurement methods is phase method, calculating the phase difference between emission signal and echo signal to solve the tip clearance. The precision of the system is closely related to the performance of synchronous acquisition. The better the synchronization performance...
Digital radio frequency memory (DRFM) is an important part of modern electronic jamming equipment. It achieves high fidelity in the storage of radar waveform and guarantees the coherence between interference and radar signal. In this paper, a design scheme of the DRFM system based on FPGA and DSP is proposed, and the FPGA is the vital part of it. According to the complex FPGA function and high design...
The seeker signal processor is a key device of a seeker. Based on the common characteristics extracted from seekers with different architectures, a general-purpose hardware scheme based on Field-Programmable Gate Array (FPGA) and Digital Signal Processor (DSP) is proposed. By taking full advantage of the FPGA and the DSP, the signal processor is equipped with the ability of high speed and real-time...
To make the FPGA configuration more flexible and easier, this article designs a SPI FLASH-based FPGA dynamic reconfiguration method according to the principle of FPGA configuration. In the paper, some of the key technologies in software design are analyzed and solved. Besides, the design has been verified on the hardware platform as well. The results show that this design is reasonably practicable...
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