A High-Performance, Single-Signal, Direct-Conversion Receiver with DSP Filtering
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چکیده
Why DSP? You may wonder “What’s the big deal?” Why are so many of the new radios supplied with DSP demodulators and filters? It’s because digital techniques have several advantages over their analog counterparts. Probably the most exciting aspect of this is that everything is done in software. This means that when I design a new demodulator, you can download it to your radio and you then have my new demodulator! No soldering; no hunting for parts; no ugly modifications—it’s so easy! Another benefit is that the results are predictable. Component tolerances are not a factor as they are with analog signal processing. Simulations are easier to do, and their results more closely approximate what happens in a real system. Another advantage results from the speed of today’s digital signal processors. Nowadays, it is quite A High-Performance, SingleSignal, Direct-Conversion Receiver with DSP Filtering
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تاریخ انتشار 2000