HRVAS is a complete and self-contained heart rate variability analysis software (HRVAS) package. HRVAS offers several preprocessing options. HRVAS offers time-domeain, freq-domain, time-frequency, and nonlinear HRV analysis. All results can be exported to an Excel file. For processing many files HRV ...
[摘 要]未经调制的数字信号所占据的频谱是从零频或者很低频率开始,称为数字基带信号,不经载波调制而直接传输数字基带信号的系统,称为数字基带传输系统。常用转码型有AMI码(传号交替反转码)、HDB3码(三阶高密度双极性码)、双相码、差分双相码、密勒码、CMI码(传号反转码)、块编码等。在仿真软件设计中采用了Mathw o ...