| 1. | Existence of quasi - maximum likelihood estimators in a semiparametric regression model with ar time series errors
情形的半参数回归模型拟极大似然估计的存在性 |
| 2. | In the main theorem , we obtained the error bound between the maximum likelihood estimator and the true parameter
使用这个不等式和概率论的方法，我们得到了参数的极大似然估计的误差界这一主要定理 |
| 3. | The definition of the maximum likelihood estimator with the prior information ( pmle ) is given in this paper , and the consistency and asymptotic normality of pmle are proved
摘要定义了有先验信息的极大似然估计，它能够充分利用参数的先验信息，还具有正规条件下的相合性和渐近正态性。 |
| 4. | According to the ideas of the pava algorithm , when sample numbers of three normal populations are different , a procedure of obtaining the maximum likelihood estimators of means and standard deviations under tree - order restrictions is proposed
根据pava算法的思想，给出了均值和标准差的比在树序约束下的极大似然估计的计算方法。 |
| 5. | The maximum likelihood estimator ( mle ) approach is an important one in frequency estimation domain . this approach has the merit such as exhibiting best performance and requiring minimum threshold of signal noise ratio in calculation
最大似然频率估计法是该领域中的一种重要的研究方法；该方法具有估计结果准确，计算所要求的信噪比门限值低等特点。 |
| 6. | Second , a maximum likelihood estimator ( mle ) that jointly estimates the carrier frequency offset ( cfo ) and the channel response of each user in uplink ofdma systems based on generalized carrier assignment schemes is investigated in this research
其次,在任意结构子载波分配方式的ofdma上行链路中,研究了一种联合载波频偏和信道的最大似然估计( ml )算法。 |
| 7. | The following are the main works : the maximum likelihood estimator ( mle ) was studied in detail , and the ocean return curve based on the sub - optimal maximum likelihood estimator ( smle ) was first obtained in china through the airborne flight experiment
( 2 )深入研究了星载雷达高度计最大似然跟踪算法，并完成了基于准最大似然算法的高度计跟踪器的研制，通过机载校飞实验，在国内第一次获得了基于准最大似然算法的海洋回波跟踪曲线。 |
| 8. | The major work is as following : based on the analysis of signal receiving problems when navigation receiver is in high dynamic circumstance , some typical algorithms such as maximum likelihood estimator ( mle ) , extended kalman filter ( ekf ) , frequency lock loop ( fll ) , digital phase lock loop ( pll ) and frequency extended kalman filter ( fekf ) are deduced
高动态下面临着多普勒频率、多普勒频率变化率较大的问题,给载波跟踪带来了很大困难。本章分析了目前高动态接收机中普遍采用的几种载波跟踪算法,对算法的性能进行了比较。 |
| 9. | In chapter2 , we discuss the step - stress accelerated life test . under typei and typeii censoring of data from the exponential distribution , we first present a necessary and sufficient condition for the existence and uniqueness of the maximum likelihood estimators of the parameters for the distribution , then give two confidence intervals based on the mle . finally , we compare them with results obtained in [ 8 ] by using monte - carlo simulation
本文第二章首先给出了指数分布场合下步进应力加速寿命试验定时和定数截尾的mle的存在和唯一的充要条件，然后给出了正常应力下平均寿命的近似置信区间，最后用随机模拟的方法研究了mle的点估计的偏性和均方误差，近似置信区间覆盖真值的比率并与其它方法作了比较。 |
| 10. | A batch least - squares maximum likelihood estimator is employed to calibrate the model coefficients of accelerometer and a polynomial post - fit method is used to establish temperature models of these coefficients . the temperature models of accelerometer bias and scale factor of accelerometer are established between - 20oc and 50 oc . after compensating the temperature error by using these models , the post - fit residuals of the accelerometer output have been improved to 10 ? 5 g , and the trend term of accelerometer changing with temperature basically vanished
采用最小二乘极大似然估计和多项式拟合的方法,分析加速度计静态模型系数随加速度计壳体温度变化的规律,建立了- 20oc 50oc之间加速度计零偏和标度因数误差的温度模型,应用该模型对加速度计温度干扰进行补偿,补偿后,加速度计输出的拟合均方根误差一到二个数量级,并且基本上消除了加速度计输出随温度变化的趋势项,使得加速度计测量精度得到了明显提高。 |
