科斯塔斯环 有助于载波同步的研究 锁相 载频3.563MHz，初始频率3.5628MHz 绘图显示具体的循环锁相过程 绘图显示相位变化-Costas reference for carrier synchronization fc0=3.563MHz,fc=3.5628Mhz show the process of synchronzation and phase change with figure.

Abstract—This paper describes a pseudorandom carrier modulation scheme and its harmonic spectra spread effect. The pseudorandom carrier of the proposed scheme are produced through the random synthesis of the two triangular carriers, each of the