Now showing items 1-10 of 1339
ENCORE: Enhanced code Galileo receiver for land management applications in Brazil
Taking benefit of the new Galileo ranging signals, the ENCORE (Enhanced Code Galileo Receiver) project aims to develop a low-cost Land Management Application to cover needs of the Brazilian market in terms of geo-referencing ...
Snapshots of conformational changes of NtrX receiver domain shed light into its signal transduction mechanism
Brucella abortus is an important pathogenic bacterium that has to overcome oxygen deficiency in order to achieve a successful infection. Previously, we proved that a two-component system formed by the histidine kinase NtrY ...
Feedforward carrier recovery for polarization demultiplexed signals with unequal signal to noise ratios
(Optical Soc AmerWashingtonEUA, 2009)
On the possibility of breaking the heterodyne detection quantum noise limit with cross-correlation
(Institute of Electrical and Electronics Engineers Inc., 2018)
The cross-correlation sensitivity of two identical balanced photodiode heterodyne receivers is characterized. Both the balanced photodiodes receive the same weak signal split up equally, a situation equivalent to an ...
Mitigating systematic errors for single frequency GPS receivers employing a penalized least squares methodology
Among the positioning systems that compose GNSS (Global Navigation Satellite System), GPS has the capability of providing low, medium and high precision positioning data. However, GPS observables may be subject to many ...
ENCORE: Enhanced Galileo code receiver for surveying applications
In this paper we describe the development of a low-cost high-accuracy Galileo Code receiver, user application software and positioning algorithms for land management applications, which have been implemented using a dedicated ...
Real time orbit determination using GPS navigation solution
This work analyses a real time orbit estimator using the raw navigation solution provided by GPS receivers. The estimation algorithm considers a Kalman filter with a rather simple orbit dynamic model and random walk modeling ...
An efficient adaptive method for estimating the distance between mobile sensors
The received signal strength (RSS) is a common source of information used for estimating the distance between two wireless nodes, whether these nodes are stationary or mobile. Minimum mean squared error distance estimation ...