Based on the need of MF-TDMA signal monitoring, this paper investigates the estimation method for frequency offset and carrier phase. The procedure for timing recovery is introduced, and then an effective algorithm is deduced for estimating carrier frequency and phase. The proposed open-loop algorithm demands no preambles and has a wide capture range. In addition, the overall block diagram of a...

We propose an alternative waveform scheme built on mutually-orthogonal complementary sets for a distributed multistatic radar. Our analysis and simulation show a reduced frequency band requirement for signal separation between antennas with centralized signal processing using the same carrier frequency. While the scheme can tolerate fluctuations of carrier frequencies and phases, range sidelobe...

---------------------------------------------------------------------***--------------------------------------------------------------------Abstract – In wireless communication, multipath propagation results in several fading effect. To equalize such long fading channel traditional single carrier time domain equalization becomes infeasible due to its large computational complexity. Single-carri...

The carrier frequency offset estimation of Orthogonal Frequency Division Multiplexing (OFDM) has always been a research focus. However, the Capturing-range and the accuracy of frequency offset estimations, as a pair of contradictions, have not been satisfactorily solved in many studies. In order to solve this problem, a frequency offset estimation algorithm with wide range and high accuracy was...

Conventional orthogonal frequency-division multiplexing receivers disregard the guard interval in channels with small dispersion even though its unconsumed portion can be exploited for improved demodulation by applying a Nyquist-shaped window in the receiver. The transmitter does not need to be modified, subcarrier orthogonality in the receiver is preserved, and the receiver discrete Fourier tr...

We propose a new joint frame synchronisation and carrier frequency offset estimation scheme for burst transmission mode OFDM systems. This scheme uses a central-symmetric and comb-like (CSCL) training sequence, which eases the power detection at the receiver without increasing the total training sequence power. Fine frame synchronisation aswell as carrier frequency offset acquisitionwith amaxim...

In this letter, we propose a blind multiuser detector based on a new data precoding technique for direct-sequence codedivision multiple-access signals. In this technique, the modulus of all users' data is block encoded, using a sequence that is unique for each user. This precoding method, together with the analytical constant modulus algorithm for detection, enables a closedform, one-shot detec...

This work presents a novel carrier frequency offset (CFO) estimation algorithm, based on pseudo-CFO (P-CFO), to estimate the CFO value under the conditions of I/Q mismatch for direct conversion structures with 2-dB gain error and 20-deg. phase error in frequency selective fading channels. To circumvent CFO with I/Q mismatch, the proposed P-CFO algorithm rotates three training symbols by adding ...

Research has shown that significant degradation in performance can occur even when operating within the limits for carrier frequency and modulation index offsets permitted by the Bluetooth standard. This is even more severe for multi-bit detectors like the matched filter bank receiver, because such errors accumulate across a longer observation interval. This paper details the derivation of a st...

By exploiting the received signal’s second-order cyclostationary statistics, blind algorithms have been recently proposed for joint estimation of the frequency offset and the symbol timing delay of a linearly modulated waveform transmitted through a flat-fading channel. The goal of this paper is to establish and analyze the asymptotic (large sample) performance of the Gini-Giannakis [4] and Gho...