整周模糊度

• In this thesis , an arithmetic in single epoch without integer ambiguity resolution and cycle slip detection and repair is given for single frequency receiver . applying the arithmetic , we can get the same high positioning precision
  应用此方法,不需要进行复杂的整周模糊度确定和周跳探测与修复等处理过程,而达到同样的定位精度。
• Using the non - sensitive characteristic of ambiguity function method ( afm ) regarding cycle slips , it is sufficiently exerted the characteristic of genetic algorithms which are optimization for ambiguity solution on - the - fly . 5
  利用模糊度函数法对于周跳不敏感的特点，充分发挥遗传算法的优化搜索特点，以实现对载波相位整周模糊度的在航解算。
• The key problems of gps carrier phase measurement are how to solve the integer ambiguity of gps carrier and how to detect and compensate the cycle slip of gps carrier in the period of navigation process
  载波相位测量定位的关键问题是如何确定整周模糊度和周跳的探测和修复。本文对此问题展开研究，讨论了在载体动态运行环境下，动态整周模糊度问题和周跳的探测与修复问题。
• Recently , with the development of gps , many researchers pay attention to the aircraft ' s precise entrance and landing through gps carrier phase measurement . the key technology of aircraft ' s precise entrance and landing is gps carrier phase integer ambiguity resolution on the fly
  近年来，随着gps的发展和完善，利用gps载波相位观测量实现飞机的精密进场与着陆的研究，开始受到人们的关注，而载波相位整周模糊度的动态确定是其中的关键技术。
• 7 . based on the comparison with dual band gps phase and c / acode , ambiguity function method , least squares search , ambiguity solution covariance , cholesky disintegrate and least square ambiguity decorrelation adjustment , it is considered the method of ambiguity function using double gps antennas to move baseline and the equation of dual differential carrier phase
  在分析双频p码伪距法、模糊度函数法、最小二乘搜索法、模糊度协方差法、 cholesky分解法、和lambda算法的基础上，重点研究基于双gps天线动一动基线载波相位双差整周模糊度确定方法。
• At last , we study the fixed estimation statistics of navigation and positioning parameter , compare positioning accuracy of the condition estimation with that of the fixed estimation , and point out interrelation of them . 6 ) after investigating the two methods of increasing the success probability , a new method of increasing success probability is presented . based on the quality of ambiguity estimators , the new method carries out the ambiguity ordering process , chooses ambiguities by estimators " accuracy , and goes on ambiguity decorrelation process using those chosen ambiguities with high accuracy
  6 ）研究了两种提高整周模糊度估计成功概率的方法，提出了一种提高整周模糊度估计成功概率的方法，该方法是在模糊度去相关变换过程中，根据各个模糊度估计的质量，对模糊度估计元素进行排序选择，选择那些估计精度高的模糊度估计元素继续进行模糊度去相关变换，通过数学分析和仿真证明了这样的处理过程可以得到较大的成功概率。
• Because formation satellite ' s relative position is very close and the geometry can change easily , based on the relative motion of satellites , the initial phase bias could be quickly resolved simulation solution indicates that phase bias can be determined quickly and the relative states accuracy should be improved by using initial phase bias
  由于编队卫星相对距离近，相对构型容易改变，因此采用卫星相对机动的方式进行整周模糊度的快速初始化。仿真结果表明，基于卫星机动，整周模糊度可很快初始化。利用初始化的整周模糊度，相对状态的解算精度会大大提高。
• The first step is to get the floating value by integrating the integer ambiguity of gps carrier signal as a state variable with ins . the second step is to get the fix value by integral filter algorithm . thirdly , the methods for detecting and compensating the cycle slip are researched
  其次研究了载波信号整周模糊度求解算法问题，提出了一种新的求解方法，即把整周模糊度作为状态变量通过与惯导的组合得到模糊度的浮动解，然后利用组合滤波器快速算法来实现整周模糊度的求解。
• So , in this paper , the problems in this field are studied and the improving algorithm is proposed and simulated . and then , the statistics of integer ambiguity estimation are analyzed ; the method of improving the success probability of integer ambiguity estimation is presented . the research and consequence are as follows
  本文对此进行了理论分析，提出了相应的算法，并进行了计算机仿真；此外，还研究了整周模糊度估计的统计特性，提出了提高整周模糊度估计成功概率的方法。
• In order to solve the troubles about the fitness function of genetic algorithms which meet many peak during search for ambiguity solution , it is presented a genetic algorithm graded , on the one hand , the precision to repeatedly search for ambiguity will be improved ; on the other hand , it will be solved that the algorithm of positioning has nothing to do with ambiguity solution
  为了解决遗传算法适应度函数多峰特征的搜索问题，研究分级优选遗传搜索算法，以提高整周模糊度解的搜索重复精度，解决与整周模糊度无关的定位解的求解问题。