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This paper is focus on the realization of signal beam forming (DBF) for base band signal through band-pass sampling, I / Q digital branch decomposition and digital filtering. In order to make more rational use of modern electronic tools, make full use of DSP's computing power, give prominence to FPGA's strong logic processing capacity and fast speed, a combination of both will be used. In the FPGA,...
The paper discussed how improve the detection probability of small targets in the complicated background of low signal noise ratio, algorithm of an improved image enhancement and digital filtering are presented for improve image quality, and improve signal to noise ratio, that is achieve the suppressing background noise and enhance the purpose of small targets. For requirements of real-time infrared...
In the Fermilab beam loss monitor system, inputs from ion chambers are integrated for a short period of time, digitized and processed to create the accelerator abort request signals. The accelerator power supplies employing 3-phase 60 Hz AC cause noise at various harmonics on our inputs which must be eliminated for monitoring purposes. During accelerator ramping, both the sampling frequency and the...
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