Title :
Least squares based post-integration filtering for robust digital LDI receivers
Author :
Scholand, Tobias ; Jung, Peter
Author_Institution :
Kommunikationstechnik, Duisburg-Essen Univ., Duisburg, Germany
Abstract :
Short range radio systems such as Bluetooth and DECT (digital enhanced cordless telecommunications) use GFSK (Gaussian frequency shift keying), a continuous phase modulation scheme derived from MSK (minimum shift keying). In this communication, the authors discuss the design of a generalized least squares (GLS) based post-integration filter, which increases the robustness of digital limiter-discriminator-integrator (LDI) receivers. As an example, MSK is used to illustrate the receiver performance.
Keywords :
Bluetooth; continuous phase modulation; cordless telephone systems; digital radio; filtering theory; frequency shift keying; least squares approximations; minimum shift keying; radio receivers; Bluetooth; Gaussian frequency shift keying; continuous phase modulation scheme; digital LDI receivers; digital enhanced cordless telecommunications; digital limiter-discriminator-integrator receivers; generalized least squares; minimum shift keying; post-integration filtering; short range radio systems; Continuous phase modulation; Detectors; Digital filters; Filtering; Frequency conversion; Frequency measurement; Least squares methods; Receivers; Robustness; Signal processing;
Conference_Titel :
Signal Processing and Information Technology, 2003. ISSPIT 2003. Proceedings of the 3rd IEEE International Symposium on
Print_ISBN :
0-7803-8292-7
DOI :
10.1109/ISSPIT.2003.1341246
