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In this article we describe our effort to create, model, implement and simulate a quadrature linear digital modulator. It is to be used as a part of advanced radio transmission system. We describe the process of modeling the modulator in Matlab in both floating and fixed point arithmetic for later implementation in VHDL language for FPGA. We also describe the techniques we have used to implement the...
In this paper two section array and the arithmetic of DOA are studied on the eight elements array antennas and DOA arithmetic is designed on the FPGA. The directional characteristic of the line array and the elliptic array antenna is compared, proving that the line array and the circuit array can be consolidated in the elliptic array and deducting the uniform expression for array performance, forth...
This paper describes work carried out at QinetiQ to demonstrate real-time operation of space-time adaptive processing (RTSTAP) for airborne phased array radar, in a laboratory environment. RTSTAP processing is performed using field programmable gate array (FPGA) hardware and controlled via a MATLABcopy graphical user interface. The FPGA hardware is connected to the PACER (phased array concepts evaluation...
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