This paper presents the baseband receiver design and implementation for the ultra-wideband (UWB) wireless personal area networks (WPAN). In particular, the receiver algorithms, which include frame detection, timing/frequency synchronization, and channel estimation, are designed and implemented. Simulation results demonstrate that the receiver has a packet error rate of less than 8% when Eb/N0 =...

Several spaceborne altimeters have been built and flown, and others are being developed, to provide measurements of ocean and ice sheet topography. Until the launch of TOPEX, altimeters were single frequency systems incapable of removing the effects of ionospheric delay on the radar pulse. With the current state of the art in satellite altimetry, the ionosphere causes the largest single error w...

Wireless communication technology such as cellular and wireless local area network (WLAN) systems have grown rapidly and generated various competing transmission formats. In the need of seamless communication across incompatible radio standards, software defined radio (SDR) concept has received much attention among researchers working in mobile and personal wireless communications. SDR is a tec...

Single point positioning (SPP) can meet the requirements of majority real-time time transfer applications. Meanwhile, a single-frequency (SF) receiver is cheaper than dual-frequency receiver. However, SPP performance be greatly affected by large pseudorange observation noise. Phase smoothing an effective approach to reduce Since classical phase-smoothed algorithm does not account for effect ion...

Abstarct In this paper, combination of channel, receiver frequency-dependent IQ imbalance and carrier frequency offset estimation under short cyclic prefix (CP) length are considered in OFDM system. An adaptive algorithm based on the set-membership filtering (SMF) algorithm is used to compensate for these impairments. In short CP length, per-tone equalization (PTEQ) structure is used to avoid i...

Orthogonal frequency division multiplexing has lot of helpful properties over the single-carrier modulation framework; a wireless communication. Existing research is entirely focused on increasing the quantity of transmitter & receiver antennas in MIMO system. They have not analyzed the data and symbol rate in the MIMO-OFDM diversity with Modulation technique. It's may be the foremost spectrall...