| Ultra-Wide Bandwidth radio has become a very promising Wireless technology. It possesses major attractive advantages in Wireless Communications, networking, radar, imaging, and positioning systems. UWB impulse radio signals provide an extremely broad bandwidth for transmission and very high data rate over short distance. An all CMOS impulse generator implemented in an Ultra-Wide-Bandwidth (UWB) wireless communication system was designed. The designed impulse generator as the initial and important component in UWB wireless communication generates a 5th derivative Gaussian pulse for transmission. The impulse generator consists of four interpolation delay blocks, an XOR block, and an FIR filter. The function firpm using the Parks-McClellan algorithm was used to optimize the impulse response of the FIR filter. The FIR filter as the pulse shaper convolves with the input signal---a Gaussian pulse to generate the 5th derivative Gaussian pulse. (Abstract shortened by UMI.)... |
