This paper presents the characteristics of monostatic radar for improving accuracy of detection through determination of the factors that were responsible for power losses in radar signal transmission and interception by targets. These factors were improved upon by looking at some parameter like the antennae gain or transmitter gain, and evaluating the result through Matlab testing of some measured distance values. This was achieved by simulating mathematical radar equations by liu, 2014, of signals transmitted over selected distances say, from 5km to 100km and evaluated the result. These power losses in the transmitted signal which characterize the error in range resolution and target detection of the returned signal in a radar system, were mitigated by increasing the antennae or transmitter gain over long distances in monostatic radar to improve the range and detection capability. The transmitting material effective aperture which forms part of the radar design was also characterized to show its effect in high definition radar development. In the table below, results of matlab simulation of varied target positions were tabulated to show better definition of target ranges over long distances while increasing transmitter gain, and effective aperture of the transmitting material though it was a function of the distance of the receiver from the target. Specific radar design and implementation are basically worked upon through these factors which can aid material selection to forestall errors in radar target detection.
Nigeria’s power infrastructure is dominated by polluting grid-connected fossil-based power systems. The Nation currently suffers from an acute electricity shortage, making nearly 40% of on-grid customers receive unreliable and inconsistent power below their demand. Solar resources are widespread in the country at considerably good potential than in many European nations. Nevertheless, Nigeria's solar photovoltaic (PV) installation capacity could be better. This paper presents the techno-economic, environmental and risk analysis of a grid-connected 10 kW, 100 kW, and 1 MW PV system for three customer segments in Abuja, Nigeria. It is found that a 1 MW grid-tied PV system is very viable at an electricity export rate not below 0.01 $/kWh and a total initial cost (TIC) of not more than 2000 $/kW for fixed axis system and 2600 $/kWh or lower for the two-axis system. The 10 kW and 100 kW PV systems are only financially viable with fiscal incentives. However, they become profitable with a minimum feed-in tariff of about 0.294, 0.297, 0.223 and 0.214 $/kWh for the fixed 10 kW, 2-axis 10 kW, fixed 100 kW and two-axis 100 kW systems, respectively.
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