Specific force

Transfer Alignment of Inertial Navigation System Using Specific Force Integration

基于比力积分匹配的惯导系统传递对准

Disturbance specific force caused by the lever arm effects in integration navigation system is investigated .

研究了组合导航系统中杆臂效应引起的干扰比力问题。

The Research of Specific Force in Long Jump Training

急行跳远专项力量训练探析

Analysis of Moving Liquid Drops Subject to Specific Force in Oil Water Separator

油水分离器中承受特殊力液滴运动分析

For measuring specific force , the SINS / DGPS reduced order filtering algorithm has been proposed .

针对比力测量，提出了SINS/DGPS组合降阶滤波算法。

The specific force equation at the noncentraled of the body is deduced .

推导了载体非质心处的比力方程，并给出了无陀螺捷联惯导系统的解算流程，为编制DSP应用程序奠定了基础。

A new sculling compensation algorithm is designed to deal with the specific force variation during velocity updating interval .

应用一种新的划船补偿算法应对比力转换过程中比力矢量的改变。

Two new methods were presented to improve the accuracy of specific force considering that only post-processing was needed in airborne gravimetry .

在航空重力测量中通常需要采用卡尔曼滤波来对比力测量误差进行估计。

The reduced order filtering algorithm reveals the inevitability of traditional algorithm , and makes the concept of specific force measurement clearer . 3 .

降阶滤波算法揭示了传统算法的内在必然性，使得比力测量的概念更加清晰。

According to the analysis of the high and low frequency parts in the equation of integral specific force , a precise velocity error correction algorithm is presented .

通过对积分比力增量方程中高频部分和低频部分的分析，提出了一种高精度的速度误差补偿算法。

A mission requiring one force to support another specific force and authorizing it to answer directly the supported force 's request for assistance .

要求一支军队支持另一个特殊军队并强迫它为援助直接答应支持军队的要求。

Therefore , a compensation method must be taken into account to eliminate the disturbance specific force caused by the lever arm effects in integration navigation system .

因此，在组合导航系统中必需考虑在线的补偿方法，以便补偿由杆臂效应引起的导航误差。

GFSINS uses accelerometers output called specific force to replace angular velocity gyroscope and calculates the bodys angular velocity .

无陀螺联捷惯导系统采用加速度计输出的比力代替角速度陀螺仪来解算载体角速度。

After the deep research on the principle of the airborne gravimetry , the research lays emphases on measuring specific force and measuring vehicle acceleration .

在对航空重力测量的原理进行深入研究之后，重点对比力测量和载体运动加速度测量两个方面进行研究。

The state space models of the velocity matching , the attitude matching , the angular rate matching and the specific force matching transfer alignment are made .

分别推导了速度匹配、姿态匹配、角速度匹配和比力匹配传递对准的状态空间模型；

Inertial reference system is the reference system which can separate the motion of the object being studied under specific force out alone from the former variable motion state .

惯性参照系就是能将被研究物体在特定力的作用下的运动从原来的变速运动中单独析出的参照系。

In traditional algorithm , Kalman filter is used to estimate the attitude error and accelerometer bias , and the estimated values are used to correct the specific force of SINS .

传统算法采用卡尔曼滤波器对惯导系统的姿态误差和加速度计零偏进行估计，并利用估计值对惯导系统的比力测量值进行校正。

Because the error of free SINS will accumulate along with the elapse of time , SINS / DGPS integration is needed to improve the accuracy of specific force .

由于纯惯导系统的误差随时间积累，因此需要采用SINS/DGPS组合来提高比力测量精度。

The method for identifying the static error model coefficients was designed ; the error model concerned with specific force was identified using pole-axis tumble test method on a two-axis turntable .

设计了陀螺仪的静态误差模型的辨识方法，采用极轴翻滚法测试了半球谐振陀螺仪的与比力有关的静态误差模型系数。

The theoretical analysis results are verified by the performance comparison simulation between the conventional specific force integration algorithms and the dual quaternion algorithms under typical angular vibration and accelerated motion conditions . 3 .

通过典型角振动及加速运动条件下传统捷联惯性导航算法和对偶四元数导航算法的仿真比较，对理论分析结果进行了验证。

Simulation analysis shows that the methods can improve the accuracy of specific force effectively , but the estimation has deviation , so other methods such as crossover adjustment are needed to remove the systematic error .

仿真分析表明所提出的方法能有效提高比力测量的精度，同时表明滤波估计是有偏的，因此还需要采用网格平差等方法来消除系统误差。

In this article , a new reduced order filtering algorithm is designed through observability analysis , the algorithm makes the concept of specific force measurement more clearer , and the correctness of this new algorithm is validated through simulation .

通过误差状态可观性分析设计一种新的降阶滤波算法，该算法使得比力测量分系统的概念更加明晰，并通过仿真验证新算法的正确性。

The first-order attitude rotation approximation is usually used in the computation of the integrated transformed specific force increment in strapdown inertial navigation velocity updating algorithm accounting for rotation of body frame relative to navigation reference frame .

传统捷联惯导速度更新算法中，将载体坐标系中的比力积分增量变换到导航参考坐标系中，载体姿态变化的影响通常采用一阶近似模型进行计算。

Analytical results show that disturbance specific force resulted from lever arm effects may become one of the major error sources while an aircraft undertakes the maneuvers , and navigation errors caused by the lever arm effects accumulate rapidly with time .

分析表明，当飞机作机动飞行时，杆臂效应引起的干扰比力是主要的误差源之一，并且由干扰比力产生的导航误差随时间快速积累。

Study on velocity-updating algorithm , especially on specific force transferring algorithm . Rotation compensation and sculling compensation are analyzed . Studying the problem of coefficient choosing in detail and making various kinds of algorithm emulation under the environment of sculling .

研究了速度更新算法中的比力转换算法，分析其中的速度旋转补偿和划船项补偿，对划船项补偿算法补偿系数选择作了详细研究，并在划船环境下对各种算法进行了仿真分析。

The function of SINS in airborne vector gravimetry is to measure the specific force , but standalone SINS can not satisfy the precision , so usually SINS / DGPS integrated navigation using Kalman Filtering is applied to improve the precision .

捷联惯导系统（SINS）在航空矢量重力测量中的基本功能是比力测量，但是纯惯导不能满足精度要求，因此通常采用卡尔曼滤波SINS/DGPS组合导航来提高比力测量的精度。

Our first airborne gravimetry system ( CHAGS ) is brought to success in 2002 . In this paper we designed the filtering flow chart of the CHAGS observed data and focused on the investigation on the filtering method of the specific force and the various corrections .

我国首套航空重力测量系统（CHAGS）于2002年研制成功.本文设计了CHAGS观测数据的滤波处理流程，着重讨论了比力及各项改正的滤波计算方法，提出了'两步滤波法'。

Indicative unit for specific cutting force in bucket wheel excavator

斗轮挖掘机单位切割力的示度单位

The exit burr height will increase due to the effect of size effect of specific cutting force .

由于单位切削力尺寸效应的影响，微切削中残留部分毛刺的高度增大。

Study on specific coercitive force of metallic nickel powders

金属镍粉比矫顽磁力研究