In this thesis , firstly , we put forward a new algorithm of the synchronization of carrier reference phase , that is to use the curve synthesizing with the general digital carrier phase looper to have an estimation on carrier frequency within 10 ms so as to meet the need of meteor burst communication . we have done some simulations to get the performance of carrier frequency estimation using two modulation modes ( 16qam and 4 - qpsk ) , and had some test on the carrier phase looper in conditions when using different baud rate transmission and when the baud tuning have windage 我们对两种正交调制方式( 16qam和4 - qpsk )进行了模拟工作并给出了模拟结果，同时讨论了码元同步定时误差对锁相环路工作的影响并根据流星通信中使用变速率传输时锁相环路的载波同步性能进行了测试；然后在基于软件无线电思想的数字处理平台(该数字处理平台实现了中频数字化)上用dsp软件完成了载波的相位跟踪。
Accordingly , a new framework , which provides a common scheme for the numerical simulation on the macroscopic behavior of ferroelectrics though multi - scale analysis on the coupled thermo - electrics - mechanical behavior of multiphase in heterogeneous material , is induced to construct the effective constitutive equation of multiphase . in chapter four , based on the law of domain nucleation and domain wall motion of 1800 domain switching , a new scheme of domain switching and numerical simulation approach is put forward on the foundation of thermodynamics . driving traction , nucleation criterion , velocity of domain wall motion , kinetic relation and rate of domain switching in a single grain are given 第四章以铁电体1800畴变的过程中形核规律和畴界运动规律的实验观察结果为基础，根据热力学理论建立铁电体畴变的理论框架和数值模拟方法；给出了单畴内畴变驱动力、新畴形核准则、畴界运动速度公式、畴变动力学的表达式，单晶的畴变速率公式；用细观力学的观点给出了对多晶铁电体多场耦合的有效性质进行包含畴变速率影响的多尺度分析方法。
