Whatever the value of the mark rate of information code is,the mark rate of translated code format is always 1/2. Because the mark rate is 1/2,there are not discrete spectral lines in power spectrum. Therefore phase jitter does not exist.

• 无论信息码传号率为何值,经码型变换后,该种码型传号率均为1/2,以致离散谱线为0,故不会产生相位抖动。