Chapter 8. Nyquist-Rate Data Conversion
The continually growing intricacy of multistandard and multimode radios in terms of desired flexibility, varied number of services, frequency bands, and complex modulation schemes is pushing the limit of common wireless transceivers. The principle aim of SDR technology is to enable such varied designs to be implemented on a single radio. A key approach to realizing this goal is by enabling further processing of the waveform, such as filtering and signal conditioning, in the digital domain, which otherwise was done in the analog domain. This can be accomplished by moving the analog/digital boundary closer to the antenna. That is not to say that the analog will be any easier, but rather that some of its complex ...
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