Computer Requirements

The appropriate hardware and software for injection control and data processing are essential in CC. Off-line data processing is possible, but a flexible and user-friendly program running on a microcomputer is to be preferred. The computer requirements

are modest: a standard PC with 640-kbyte memory is sufficient. A hardware card for controlling the valves, and an A/D converter (12 bits, minimum sampling frequency 10 Hz), including an anti-aliasing filter to prevent back-folding of high-frequency noise, are necessary. The software includes the generation of an arbitrary number of PRBSs, with selectable duration of the clock period and 2n — 1 clock periods in a sequence; n is integer number mostly between 5 and 12. The standard deviation of the smallest (first) peak and the desired resolution determine the clock period.

The data processing is relatively simple. Straightforward cross-correlation may be replaced by the application of an off-line Hadamard transform procedure, speeding up the calculation. Display of the selected parameters (clock period, sequence length, number of sequences), the time varying detector signal, the on-line calculated correlogram, and possibly the injection PRBS are indispensable for application in practice.

Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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