基于码本映射的语音带宽扩展算法研究
在现代通信系统中,电话语音的频带被限制在300 Hz~4 kHz的范围内,带来了语音可懂度和自然度的降低。为了在不增加额外成本的前提下提高语音的可懂度和自然度,进行了电话语音频带扩展的研究。提出了一种...
在现代通信系统中,电话语音的频带被限制在300 Hz~4 kHz的范围内,带来了语音可懂度和自然度的降低。为了在不增加额外成本的前提下提高语音的可懂度和自然度,进行了电话语音频带扩展的研究。提出了一种...
The field of microelectromechanical systems (MEMS), particularly micromachinedmechanical transducers...
Abstract: The number of uses for microelectromechanical systems (MEMS) is growing—they allow...
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This is the Xilinx Dual Processor Reference Designs suite. The designs illustrate a few differentd...
The LPC2292/2294 microcontrollers are based on a 16/32-bit ARM7TDMI-S CPU with real-time emulation ...
Abstract: The process of designing a radio system can be complex and often involves many project t...
Linear Technology offers some of the highest performance RF and signal chain solutions for wireles...
Abstract: Engineers often wish that radio susceptibility (RS) or radio immunity could be ...
同步技术是跳频通信系统的关键技术之一,尤其是在快速跳频通信系统中,常规跳频通信通过同步字头携带相关码的方法来实现同步,但对于快跳频来说,由于是一跳或者多跳传输一个调制符号,难以携带相关码。对此引入双跳...