Angular rate is a piece of useful information for the attitude control spacecraft. The star tracker as space optical sensor can be used to measure angular In this paper, novel approach proposed improve measurement accuracy during spacecraft rotation. electronic rolling shutter (RS) imaging mode complementary metal-oxide semiconductor (CMOS) image in applied obtain much higher sampling frequency...

The low frequency errors (LFE) of star trackers are the most penalizing errors for high-accuracy satellite attitude determination. Two test star trackers- have been mounted on the Space Technology Experiment and Climate Exploration (STECE) satellite, a small satellite mission developed by China. To extract and compensate the LFE of the attitude measurements for the two test star trackers, a new...

Expense Tracker is a web application through which users can maintain their expenses on the machine efficiently instead of making paper diary. It an efficient way managing one’s without need manual calculations. provides various categories for income and like clothes, food, movies, investment, rent, salary, business many more. There reminder feature will give alerting notification if user has e...

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I describe a simple on-line tempo tracker, based on phase and period locking a single oscillator to performance event timings. The tracker parameters are optimized on a corpus of solo piano performances by twelve musicians. The tracker is then tested on a second corpus of performances, played by the same twelve musicians. The performance of this tracker is compared to previously published resul...

In this paper, we proposed a novel classifierbased object tracker which combined a rectangular features based adaboost detector with optical-flow based tracking method, Support Vector Tracker. We show that gradient of extended rectangular features can be calculated rapidly by using integral image method. The proposed tracker was tested on real video sequences. We applied our tracker for face tr...

let $d$ be an integral domain and $star$ a semistar operation stable and of finite type on it. we define the semistar dimension (inequality) formula and discover their relations with $star$-universally catenarian domains and $star$-stably strong s-domains. as an application, we give new characterizations of $star$-quasi-pr"{u}fer domains and um$t$ domains in terms of dimension ine...