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The ITER Fast Plant System Controllers (FPSC) are based on embedded technologies and will be devoted to both data acquisition tasks (sampling rates >1 kSPS) and control purposes in closed-control loops whose cycle times are below 1 ms. Fast Controllers will be dedicated industrial controllers with the ability to: i) supervise other fast and/or slow controllers; ii) interface to actuators and sensors...
Data acquisition on the ISTTOK tokamak is being upgraded from VME to PCI using a general purpose especially developed transient recorder PCI acquisition board with 8 galvanic isolated 14 bit, 2 MSamples/sec channels, 512 Mbytes of SDRAM, and integrated FPGA/DSP capabilities. Due to the wide range of ISTTOK signal spectrum, data-reduction is crucial to efficiently use data retrieval and analysis systems...
Eight independent multi-rate signal interpolators, with real-time change of rate capability, were implemented on a field programmable gate array. The interpolator main building blocks are a cascaded integrator-comb (CIC) filter and the respective compensation filter. The latter performs a fixed rate change of 4 and was implemented as a 129 taps finite impulse response (FIR) filter. The FIR filter...
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