STUDI PUSTAKA STANDARISASI HIGH RESOLUTION QUANTISATION (HRQ) PADA APLIKASI STRUKTUR RF-UPCONVERTER

Abstrak

This paper offers study review of high resolution quantisation schemes for RF-upconverter structures. Thequantisation application in this structure has the function of noise shaping filter which is to distribute quantisation errorsor noise at the lowest position in the desired signal band. Technically, it can simply input the input signal twice thebandwidth and reduce the noise quantisation in the desired signal band. The method used is variety where quantisationversion using all variable clock periods and constant phase references. This method will also be useful in the selection ofvariations in over sampling ratio (OSR) and offset frequency (foffset) used for various quantisation levels used when thebaseband tuning procession will be applied.All digital signal processing (DSP) systems scale with the sample rate and so the higher the sample rate thelarger the bandwidth of the noise transfer function null. This is clearly desirable that such ΔΣ systems are one ofpotential solutions. This also includes their quantiser technique. It is therefore important to make any quantisationprocess fast in best high resolution.