Title :
A baseband pulse shaping filter for Gaussian minimum shift keying
Author :
Krishnapura, N. ; Pavan, S. ; Mathiazhagan, C. ; Ramamurthi, B.
Author_Institution :
Dept. of Electr. Eng., Columbia Univ., New York, NY, USA
Abstract :
Gaussian pulse shaping is used in digital communication systems like DECT, GSM, WLAN to minimize the out of band spectral energy. The baseband rectangular pulse stream is passed through a filter with a Gaussian impulse response before frequency modulating the carrier. Traditionally this is done by storing the values of the pulse shape in a ROM and converting it to an analog waveform with a DAC followed by a smoothing filter. This paper explores a fully analog implementation of an integrated Gaussian pulse shaper, which can result in a reduced power consumption and chip area
Keywords :
CMOS analogue integrated circuits; active filters; cellular radio; cordless telephone systems; digital radio; minimum shift keying; pulse shaping circuits; wireless LAN; 1.152 Mbit/s; 2 micron; 576 kHz; Bessel filter; DECT application; GSM; Gaussian impulse response; Gaussian minimum shift keying; MSK; WLAN; baseband pulse shaping filter; baseband rectangular pulse stream; chip area reduction; fully analog implementation; integrated Gaussian pulse shaper; power consumption reduction; Band pass filters; Baseband; Digital communication; Frequency modulation; GSM; Pulse modulation; Pulse shaping methods; Read only memory; Shape; Wireless LAN;
Conference_Titel :
Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on
Conference_Location :
Monterey, CA
Print_ISBN :
0-7803-4455-3
DOI :
10.1109/ISCAS.1998.704333
