In this paper satellite wave propagation at Ku and Ka band is considered. The design and simulation of a typical satellite beacon receiver at Ka band is designed and simulated for the future works. Also rain attenuation prediction at Ku band using satellite signal beacon measurement and simulations for Iran Telecommunication Research Center (ITRC) are presented. The measurement setup consists o...

The means for providing AGC for the overall receiver are important aspects of the block diagram design for an HF SSB receiver. The receiver is operationally required to have nearly constant audio output as the signal input ranges from the 1-μV region to perhaps 1 V or more and to do so without having loop oscillation or distorting the received signal. A receiver primarily designed to be used by...

| This paper examines the eeect of signal quantization on the performance of an adaptive LMMSE DS-CDMA receiver in the up-link of low mobility, high data rate wireless local loop (WLL) application. The baseband receiver considered is the LMS-LMMSE receiver which includes the nite quantization of the incoming signal. Both AWGN channel and mul-tipath channel model based on actual channel measurem...

Abstract GNSS frequency transfer (FT) based on precise point positioning delivers instability values down to sub-10 −16 between two modern receivers. In the present study we investigate technical limits such receivers impose FT by means of a dedicated experiment at Germany’s national metrology institute (PTB). For this purpose, four geodetic receivers, same type each, were all connected one sin...

RAKE receiver is used in CDMA-based (Code Division Multiple Access) systems and can combine multipath components, which are time-delayed versions of the original signal transmission. Combining is done in order to improve the signal to noise ration at the receiver. RAKE receiver attempts to collect the time-shifted versions of the original signal by providing a separate correlation receiver for ...

as functional integration has increased in hand-held consumer devices features such as global positioning system (gps) receivers have been embedded in increasingly more devices in recent years. for example, the train positioning system based on gps provides an integrated positioning solution which can be used in many rail applications without a cost intensive infrastructure. the network built i...

An achievable rate region is obtained for a primary multiple access network coexisting with a secondary link of one transmitter and a corresponding receiver. The rate region depicts the sum primary rate versus the secondary rate and is established assuming that the secondary link performs rate-splitting. The achievable rate region is the union of two types of achievable rate regions. The first ...

A channelized digital ultrawideband (UWB) receiver that efficiently samples the UWB signal at a fraction of the chip frequency is proposed. The received signal is channelized in the frequency domain by employing a bank of mixers and low-pass filters. After sampling at a much reduced frequency, digital synthesis filters optimally estimate the transmitted signals. The signal-to-noise ratio (SNR) ...

The enhanced Loran signal transmits the through atmospheric channel. Considering obstacles and other factors, radio wave will be affected by path loss, shadow fading multipath fading. Therefore, power at different distances from transmitting point is different. scaled model antenna used to transmit receive signal, receiver receive. According of received receiver, propagation distance can deduce...