Digital signal processors

Digital Signal Processor board fPSP) it is hosted into the PC and processes in real time the binary sequences stored into the acquisition board FIFO memories. The board processes arrival times and extracts the correlated AT generated by AE events. The PC picks up the data stored into the DSP memories and calculates the position of the AE sources. 

The data are transmitted from the front end processor to the computer in digital form over an ethemet link. The data consist of ultrasonic data, either raw RF A-scans or data processed by the digital signal processor in the PSP-4. In addition to the ultrasonic data, scanner coordinates are transmitted over the ethemet link. 

Fig. 11. Particle size analyzer based on ultrasonic spectroscopy where DSP = digital signal processor, and RS 232 is a standard serial connection that allows...

K. Kose, T. Haishi 1998, (Development of a flexible pulse programmer for MR] using a commercial digital signal processor board), in Spatially Resolved Magnetic Resonance, eds. P. Blunder, B. Blu-mich, R. Botto, E. Fukushima, Wiley-VCH. 

Differential reflection spectrometry = differential reflectrometry digital signal processor Electrochemistry Electron-capture device... 

Digital circuits are a key part of virtually every electrical system. The simplicity of l s and 0 s can create the reality of computers, calculators, CD-ROMs, fiberoptic transmissions, digital signal processors, and a host of other new technologies too numerous to mention. 

Kloker, 1986] Kloker, K. (1986). Motorola DSP56000 Digital Signal Processor. IEEE Micro, 6(6) 29-48. 

Papamichalis and Simar, 1988] Papamichalis, P. and Simar, R. (1988). The TMS320C30 Floating-Point-Digital Signal Processor. IEEE Micro, 8(6) 13-29. 

Control and data signals from the 68020 based workstation are bused over to a control card that buffers the signals and places them on the backplane (not illustrated). The instrument cards are plugged into the backplane and controlled by the host processor. Each instrument card has a digital signal processor (an AT T DSP-16) for mixing the digital outputs as follow This processor must (a) mix the output from... 

Dattorro, 1987] Dattorro, J. (1987). Using digital signal processor chips in a stereo audio time compressor/expander. Proc. 83rd AES Convention, New York. preprint 2500 (M-6). 

Sohie and Kloker, 1988] Sohie, G. R. and Kloker, K. L. (1988). A Digital Signal Processor with IEEE Floating-Point Arithmetic. IEEE Micro, 8(6) 49-67. 

A novel extension to the electrochromic technique has recently been introduced. This utilizes the exquisite abihty of digital signal processors to measure harmonic distortion. When a purely sinusoidal modulation is made of the... 

The correlator circuit as the core component of our digital signal processor has been selected. The 128-channel autocorrelator that gives 8 MHz frequency resolution, e.g. appropriate for space-borne application has been designed and its correct operation has been verified. Our approach in design of 128-channel autocorrelator is to compose it from a 16-channel autocorrelator and 112-stage PRSR. The shift register should have number... 

Figure 3.9. Schematic illustration of NMR data collection. Pulsed rf excitation stimulates the NMR response in the probe head which is then amplified and detected in the receiver. The receiver reference frequency (that of the pulse rf) is subtracted to leave only audio frequencies (AF) which are digitised by the analogue-to-digital converter (ADC) and subsequently stored within the computer. The functions of the boxed sections are described later in the text (DSP digital signal processor).

The digital signal-processing control unit is the link to the actuator subsystems and to external connections for operation switches. Usually, a 24-bit digital signal processor is used assisted by an ASIC for the fast Fourier transformation. Technical data of the sensor are as follows. 

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