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Ground-based-SAR
- The word Radar is the acronym of Radio detection and ranging. Radar is an active instrument, which measures the echo of scattering objects, surfaces and volumes illuminated by an electromagnetic wave internally generated belonging to the microwave po
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- 语音信号的延时和混响 1)利用Windows下的录音机或其他软件,录制一段自己的语音信号,时间控制在1s左右,并对录制的信号进行采样; 2)语音信号的频谱分析,画出采样后语音信号的时域波形和频谱图; 3)将信号加入延时和混响,再分析其频谱,并与原始信号频谱进行比较; 4)设计几种特殊类型的滤波器:单回声滤波器,多重回声滤波器,全通结构的混响器,并画出滤波器的频域响应; 5)用自己设计的滤波器对采集的语音信号进行滤波; 6)分析得到信号的频谱,画出滤波后信号的时域波形和频谱