Ce este un DSP
Nu putem comunica prin semnale digitale. Un semnal digital este o informatie caracterizata de doua stari A digital signal is a language of 1s and 0s that can be processed by mathematics. We speak in real-world, analog signals. Analog signals are real world signals that you and I experience everyday - sound, light, temperature, pressure.
A digital signal is a numerical representation of the analog signal. It may be easier and more cost effective to process these signals in the digital world. In the real world, we can convert these signals into digital signals through our analog-to-digital conversion process, process the signals, and if needed, bring the signals back out to the analog world through the digital-to-analog converter.
Which technology should I use?
How can I learn more about DSP?
Which technology should I use for digital signal processing?
If a universal microprocessor solution existed with which every design could be realized, the electronics industry wouldn't be a very competitive place. However, typically in most electronic designs, more than one processor technology can be used to implement the required functions. The trick is, of course, to choose the one that best delivers the performance, size, power consumption, features, software and tools to get the job done fast - without breaking the budget.
After almost two decades of development, digital signal processors continue to take the place of competitive processors. Digital signal processors are, after all, at the center of signal processing.
Digital Signal Processors A digital signal processor (DSP) is a type of microprocessor - one that is incredibly fast and powerful. A DSP is unique because it processes data in real time. This real-time capability makes a DSP perfect for applications that cannot tolerate any delays.
For example, did you ever talk on a cell phone where two people couldn't talk at once? You had to wait until the other person finished talking. If you both spoke simultaneously, the signal was cut--you didn't hear the other person. With today's digital cell phones, which use DSP, you can talk normally. The DSP processors inside cell phones process sounds so rapidly you hear them as quickly as you can speak - in real time. Here are just some of the advantages of designing with DSPs over other microprocessors:
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