High Speed Data Acquisition System Using Fpga for Llrf Measurement and Control
نویسندگان
چکیده
Currently, FPGA (Field Programmable Gate Array) technology is being widely used for accelerator control owing to its fast digital processing capability. We have recently developed a high-speed data acquisition system that combines a commercial FPGA board (ML555) with a fast ADC (ADS5474; 14 bit; maximum sampling rate: 400 MS/s; bandwidth: 1.4 GHz). This system enables direct measurements of 1.3-GHz RF signals at a sampling frequency 270 MHz. This direct sampling method does not require a down-converter, and hence, the calibration step can be avoided. These results are analyzed and compared with those obtained with the conventional measurement method.
منابع مشابه
A Fpga Based High Speed Data Acquisition Card
A FPGA based, high speed, two channel, analog input card with a maximum input sampling rate of 1 Giga samples per second (Gsps) per channel has been designed and tested. The card has got an on-board cPCI interface but has been designed in a way that it can also work as a stand-alone system. The card can function as a platform for developing and evaluating different FPGA based hardware designs. ...
متن کاملParameterized control layer of FPGA based cavity controller and simulator for TESLA Test Facility
The paper describes a functional idea of the parameterized control layer for the FPGA based advanced electronic and photonic systems. The systems under considerations are used (or planned to be used) for the construction of distributed, control, simulation, measurement and data acquisition in the Low Level Radio Frequency (LLRF) part of the TESLA and X-Ray FEL projects in DESY. Practical realiz...
متن کاملDesign and Implementation of a Pulsed Digital Llrf System for the Ral Front End Test Stand
Design, implementation and some practical results of the pulsed digital LLRF system (amplitude, phase and tuning loops) of the RFQ for the RAL (Rutherford Appleton Laboratory) FETS (Front End Test Stand) are presented. The design is based on a fast analog front-end for RF-baseband conversion and a model-based Virtex-4 FPGA unit for signal processing and PI regulation. Complexity of the LLRF tim...
متن کاملPortable data acquisition system based on FPGA and USB
Nowadays, along with the development of technology of the high-speed Analog to Digital Converter (ADC) and Field Programmable Gate Array (FPGA), the design and the implementation of high-speed and highaccuracy data acquisition system is also becoming economic and feasible. In this paper, we designed a high-speed, high-precision, portable data acquisition and processing system in Altera Corporat...
متن کاملLow Complexity and High speed in Leading DCD ERLS Algorithm
Adaptive algorithms lead to adjust the system coefficients based on the measured data. This paper presents a dichotomous coordinate descent method to reduce the computational complexity and to improve the tracking ability based on the variable forgetting factor when there are a lot of changes in the system. Vedic mathematics is used to implement the multiplier and the divider in the VFF equatio...
متن کامل