DocumentCode :
3780671
Title :
VXI based multibunch detector and QPSK modulator for the PEP-II/ALS/DA/spl Phi/NE longitudinal feedback system
Author :
A. Young;J. Fox;D. Teytelman
Author_Institution :
Linear Accel. Center, Stanford Univ., CA, USA
Volume :
2
fYear :
1997
Firstpage :
2368
Abstract :
The PEP-II/ALS/DA/spl Phi/NE feedback systems are complex systems implemented using analog, digital and microwave circuits. The VXI hardware implementation for the front-end and back-end analog processing modules is presented. The front-end module produces a baseband beam phase signal from pickups using a microwave tone burst generator. The back-end VXI module generates an AM/QPSK modulated signal from a baseband correction signal computed in a digital signal processor. These components are implemented in VXI packages that allow a wide spectrum of system functions including a 120 MHz bandwidth rms detector, reference phase servo, woofer link to the RF control system, standard VXI status/control, and user defined registers. The details of the design and implementation of the VXI modules including performance characteristics are presented.
Keywords :
"Detectors","Quadrature phase shift keying","Baseband","Signal generators","Signal processing","Control systems","Microwave circuits","Feedback circuits","Hardware","Microwave generation"
Publisher :
ieee
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Print_ISBN :
0-7803-4376-X
Type :
conf
DOI :
10.1109/PAC.1997.751211
Filename :
751211
Link To Document :
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