DESIGN OF RF DOWN CONVERTER FOR IRNSS USER RECEIVER
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 30, Vol 5, Issue 5
Abstract
This paper demonstrates the design of RF front end down converter for IRNSS user receiver. Here the IRNSS frequency L5 (1176.45 MHz), S1 (2492.028 MHz) and GPS (1575.42 MHz) are down converted to a common Intermediate frequency (IF) 72.221 MHz. The Down Converter proposed here is interfaced between the antenna and Base Band Card, for down converting and pre-conditioning the Radio-Frequency signal. A prototype of the design is successfully used in finding the user position with an accuracy of 0.5 meter.
Authors and Affiliations
N S Rajendran
A REVIEW ON CHANNEL ESTIMATION USING BP NEURAL NETWORK FOR OFDM
OFDM systems are limited by multipath fading. Previously channel estimation was carried out by transmitting pilot symbols in OFDM .The techniques used were comb type pilot arrangement and block type arrangement us...
A Remote Sensing & GIS approach for Land Use Planning in Champhai District, Mizoram, India
Planning for sustained and effective land use has been the main focus for developing regions in north-east India, especially in states like Mizoram. The age long practice of shifting cultivation in these regions h...
Study on the use of Recycled Aggregate in concrete
Recycling is the act of processing the used material for use in creating new product. The usage of natural aggregate is getting more and more intense with the advanced development in infrastructu of natural aggregate,...
VIRTUAL KEYBOARD: AN INTELLIGENT INTERACTION SYSTEM FOR DESKTOP USING STANDARD CAMERA
A virtual keyboard is a type of keyboard which doesn’t require any external physical support and can be operated by simply moving fingers, rather than typing on the physical keys of keyboard. Camera tracks the fin...
SIMULATION AND OPTIMIZATION OF HYBRID RENEWABLE ENERGY SYSTEMS FOR REMOTE AREA RESIDENTIAL APPLICATIONS
This paper shows the way to design the aspects of a hybrid power system that will target remote users. The main power for the hybrid system comes from the photovoltaic (PV) panels, while the fuel cell (FC) and sec...