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The final coverage and associated performance of a single frequency networks (SFNs) is a joint result of the properties of all transmitters in the SFN. Due to the large number of parameters involved in the process, finding the right configuration is quite complex. The purpose of this paper is to find optimal SFN network configurations for second generation digital terrestrial broadcast system (DVB-T2)...
In this paper, a wideband, gain-flattened, highly-linear signal reconnaissance receiver worked on UAV with high sensitivity and high Dynamic range is proposed for complex electromagnetic environment of space and variable transmitter source. The reconnaissance receiver used field programmable gate array (FPGA) and some supporting chip and circuit to accomplish the frequency select and data storage...
A wideband 1.1-1.7GHz low-noise amplifier (LNA) for dual-band global positioning system (GPS)receiver is presented.It is a single-ended amplifier with differential double-ended output. Input matching is extended to wide bandwidth using an input three-section band-pass Chebyshev filter. The LNA,integrated in SMIC 0.18μm CMOS process with a bandwidth of 1.1-1.7GHz, exhibits a power gain of more than...
An integrated 1.57 GHz Low Noise Amplifier (LNA) and an active balanced mixer for the RF front-end in the portable global positioning system (GPS) receivers is proposed based on SMIC 180 nm 1P6M RF CMOS process. The MOS transistors in the proposed LNA are biased in moderately inverted region to achieve low power. The active balanced mixer is based on Gilbert cell. The post-layout simulation results...
With the use of moving objects in the developing, experimenting, checking and training process of the so-called air to ground and ground to ground equipments, the quality of experiment and training is possibly restrained once the moving objects stand still or can only move with low velocity. So it is necessary to design a system with a target similarly the tank moving objects on the land for providing...
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