Basic Elements of Electronic Sign Processing Method

上一篇 / 下一篇  2020-05-11 01:40:32 / 個人分類:科技

Basic Elements of Electronic Sign Processing Method

Most from the alerts encountered in science and engineering are analog in nature. That is definitely the signals are functions of the continuous variable, this kind of as time or space, and usually just take on values inside of a continuous range. These alerts may be processed directly by appropriate analog devices (this kind of as filters or frequency analyzers) or frequency multipliers for the purpose of changing their characteristics or extracting some desired data. In this kind of a case we say which the sign has been processed directly in its analog form, as illustrated in picture down below.

Both the input signal as well as the output sign are in analog form.

Electronic sign processing gives an alternative method for processing the analog signal, as illustrated in determine below.

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To perform. the processing digitally, there can be a need for an interface between the analog signal as well as the electronic processor. This interface is called an analog-to-digital (A/D) converter. The output on the A?D converter can be a digital signal that is appropriate as an input into the digital processor.

The electronic sign processor may be a large programmable digital computer or a small microprocessor programmed to perform. the desired operations within the input sign. It may also be a hardwired digital processor configured to perform. a specified set of operations around the input sign. Programmable machines provide the flexibility to change the sign processing operations via a change from the application, whilst hardwired machines are tricky to reconfigure. Consequently, programmable sign processors are in very common use. About the other hand, when sign processing operations are well defined, a hardwired implementation of your operations is often optimized, resulting inside a cheaper sign processor and, usually, one that runs quicker than its programmable counterpart. In applications where the electronic output within the electronic signal processor is being given on the user in analog form, these types of as in speech communications, we must provide an additional interface from your digital area to analog domain. These an interface is named a digital-to-analog (D/A) converter. Thus the sign is provided towards the user in analog form.

Nevertheless, there are other simple programs involving sign analysis, the place the desired info is conveyed in electronic form. and no D/A converter is required. For instance, inside the electronic processing of radar alerts, the data extracted within the radar sign, this sort of as the position with the aircraft and its pace, may simply be printed on paper. There is no need for the D/A converter in this case.

Related links:

An Introduction to Digital Signal Processing

The Value of Electronic Sign Processing

The Fundamentals of Digital Signal Processing

How DSP Supports Always-On Functions

digital sign processing (DSP)




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