Sample Rate Conversion in Software Configurable Radios by Tim Hentschel

By Tim Hentschel

This authoritative, modern source offers a complete evaluate of pattern fee conversion (SRC) and its purposes in software program configurable radios. The booklet is helping you know the bounds of possible structures for pattern expense conversion, in addition to the boundaries of interpolation. You get sound suggestion on choosing the right kinds of SRC for particular purposes, and tips in dealing with the trade-off among complexity and the clock fee of a procedure.

From an advent to software program radio and a refresher at the basics of sampling and pattern cost conversion, to discussions on block sign processing and famous and novel buildings for pattern expense conversion, the booklet provide you with sensible information that permits you to quick locate ideas to your not easy tasks within the box. This first-of-its-kind reference concludes with a listing of questions that – while replied – is helping to layout a procedure for pattern cost conversion. Over 890 equations and ninety illustrations help key issues during the ebook.

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Sample Rate Conversion in Software Configurable Radios

This authoritative, modern source provides a entire evaluate of pattern expense conversion (SRC) and its functions in software program configurable radios. The publication is helping the boundaries of possible platforms for pattern cost conversion, in addition to the boundaries of interpolation. You get sound recommendation on determining the right kinds of SRC for particular purposes, and counsel in dealing with the trade-off among complexity and the clock expense of a process.

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This is a problem because baseband processing is usually carried out at the target rate and not at an arbitrary sample rate. Because a software radio terminal should support a great variety of air interfaces, many different target rates must be supported. This can, in principle, be realized by clocking the ADC at a rate specific to the actual air interface, which means that a tunable oscillator of high quality (low jitter) must be designed to the terminal. Complex analog components must be avoided in mass production.

Hentschel, and G. P. Fettweis, ‘‘Digital Down Conversion in Software Radio Terminals,’’ in Proceedings of the 10th European Signal Processing Conference (EUSIPCO), Vol. 3, Tampere, Finland, September 5–8, 2000, pp. 1517–1520. , et. , ‘‘An IF Digitizing Receiver for a Combined GPS/GSM Terminal,’’ in IEEE Radio and Wireless Conference (RAWCON), August 1998, pp. 39–42. , K. Boehm, and T. Hentschel, ‘‘A GSM/GPS Receiver With a Bandpass Sigma-Delta Analog to Digital Converter,’’ in Proceedings of the European Microwave Conference, Munich, Germany, Vol.

Moreover, we have learned that as long as the sampling theorem is obeyed, the actual known sample rate can be varied to meet other system requirements. , both signals carry the same information). Audio signals are used as an example. 1 kHz or on a digital audio tape (DAT) recorder with a sample rate of 48 kHz. 1 kHz on a CD recorder and we want to copy it to the DAT recorder that works with a sample rate of 48 kHz? This question can be formulated more generally: How can a digital signal be represented at a different sample rate than that at which it was first acquired?

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