In this paper, simplified RAKE receiver structures is analysed and its performance in UWB channels is studied. This paper also contains simulation and comparison of different types of RAKE receivers – ARAKE receiver, SRAKE receiver, and PRAKE receiver. The improvement in the bitrate for the specific distance between transmitter and receiver is shown here. The finger selection is one of the impo...

2.1. Detection in the Presence of Noise A simplified block diagram of a radar receiver that employs an envelope detector followed by a threshold decision is shown in Fig. 2.1. The input signal to the receiver is composed of the radar echo signal and additive zero mean white Gaussian noise , with variance . The input noise is assumed to be spatially incoherent and uncorrelated with the signal. T...

The GPS antenna is the connecting component between the GPS satellite and the GPS receiver. Its function is to transfer the satellite signal propagation to the receiver with minimum interruption. A satisfactory process is expected to result in an accurate and reliable performance of the GPS receiver. Multipath error is a dominant error source connected with GPS positioning. Mitigation of such e...

In this paper a software implementation of a reconfigurable Amplitude Modulated (AM) receiver for weak AM signals detection with reduced processing latency is presented. The Stochastic Resonance (SR) algorithm, which is a technique for weak signal detection was developed for software defined, AM receiver. The performance of the SR based AM receiver was evaluated in terms of its output Signal to...

This paper presents a 115-mW Global Positioning System radio receiver that is implemented in a 0.5m CMOS technology. The receiver includes the complete analog signal path, comprising a low-noise amplifier, I-Q mixers, on-chip active filters, and 1-bit analog-digital converters. In addition, it includes a low-power phase-locked loop that synthesizes the first local oscillator. The receiver achie...

The aim of this project is to implement and develop a platform that allows developing a GPS software receiver using available signal processing techniques. This allows testing and implementing a new algorithm which also permits to upgrade the receiver easily to new signal structures or even other navigation systems. In this project we developed Coarse/Acquisition (C/A)) code generator of GPS re...

Finite-resolution digital receiver is considered to be a potential solution to meet the severe demand of ADC that results from wideband of IR-UWB signal. However, the quantized distortion is totally different from full-resolution quantized signal. In this paper, the finite-resolution quantized signal model is derived. Based on the correlation receiver, estimation and detection performance of fi...

In this paper, a type of symbol-level adaptive equalizer-based receiver is proposed for downlink multiple access interference (MAI) suppression in WCDMA cellular systems. This type of receiver does not need channel estimation, which is necessary in most other proposals, and hence has relative low complexity. After introducing the loop structure of the basic MAI suppression receiver, the paper f...

We propose here a linear blind multiuser detector, referred to as the Capon receiver, for space-time coded CDMA (code division multiple access) systems. The proposed Capon receiver is designed to pass desired signals without distortion, meanwhile minimizing the overall interference signals, irrespective of their origins. It is shown that the Capon receiver achieves similar performance in terms ...

An optical receiver concept for binary signals with performance approaching the quantum limit at low average-signal energies is developed and analyzed. A conditionally nulling receiver that reaches the quantum limit in the absence of background photons has been devised by Dolinar. However, this receiver requires ideal optical combining and complicated real-time shaping of the local field; hence...