Modelling and Implementation of Its Channel Estimation and Imaging Radar : an Impact on Remote Sensing and Its System

We are proceeding towards a broadband age both for the communication as well as remote sensing. Recently, CALM standard has already been formulated by ITU with objectives of collision avoidance between car to car as well as car to roadside communication and safety by utilization of Sensor-friendly vehicle. Millimetre wave radar is mandatory in every car to locate accurate position. Lots of works can be thought of relating to the radar. In radar, a target is characterized by its radar cross section (RCS) function. RCS measurements and its system developments at UHF and Low frequency range are the challenging assignments for the Engineers. The antenna beam width is poor at such low frequency ranges. So, lots of additional constraints from the channel will pollute the system performance. Proper design, waveforms, and signal processing are very important for the system designer. Implementation of modern SDR in the system may be the best choice. Correlation based system design is also another preference for the system designer. Of course some additional advantages are also there and some portion of the objects which were previously invisible at high frequencies now will become visible. In this paper a multifunctional operations in system realization for radar & communication technology has been tried for moving vehicle application. The system is tested at the laboratory and also in the open test bed. Field trial is yet to be undertaken in vehicles for ensuring a reliable communication and collision avoidance as intelligent transport system. SDR based design approach is tried for the individual and total system. However, at the initial phases, conventional non SDR based methods were tried for individual systems. Observation leads to the fact that in each type of receivers, e.g., radar and communication; for target identification, radio noise detection and reception of transmitted signal respectively, demand autocorrelation method to be adopted as one of the performance enhancement techniques implemented separately