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In this paper, we evaluated the signal to noise ratio (SNR) gain and transmission gain of ultra wideband (UWB) receivers performance for wireless personal area network. The optimum and isotropic template receivers are considered based on the data measurement. The biconical antennas are used as the transmitter (Tx) and receiver (Rx) antennas. The rectangular passband, which is satisfied the full band...
This paper proposes a three-channel (3-channel) variable filter-bank (VFB) that consists of variable lowpass, variable bandpass, and variable highpass digital filters. The three variable digital filters are obtained from a normalized analog prototype Chebyshev type-I lowpass filter using analog frequency transformations along with a modified bilinear transformation. Since both the magnitudes (gains)...
This paper discusses a new approach to measure very short distances between objects using two frequency Continuous waveforms and based on a K-band Doppler technology. The system's operation is performed using two-frequency radar to obtain expeditiously and highly accurate measurements for stationary and moving objects. Experiments have been conducted and a mathematical presentation of the system's...
In this paper, we demonstrate the compensation effect of nonlinear distortion of loudspeaker systems using dynamic distortion measurement. The swept sinusoidal wave is usually used for the verification of the compensation effect of nonlinear distortion. However, the evaluation result is not always corresponding to actual drive status because the input signals to loudspeaker systems have wideband frequency...
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