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The paper presents a Photovoltaic (PV) Inverter System based on TMS320F28027 that can not only achieve single phase DC/AC converting by a full-bridge inverter, but also realize the function of same phase-frequency between sine waveform generated from PV Inverter System and the reference waveform from grid. Furthermore, the single phase DC/VC converting is controlled by means of SPWM generated by taking...
A good stealth performance of radio frequency (RF) signals is very important for fighters in order to have high penetration capacity, survivance capacity and combat effectiveness in an electronic warfare. Some design principles of RF stealth signals are proposed in this paper. In the light of design principles, hopping-frequency signals were proved to having the good RF stealth performance. The simulated...
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