Ire Transactions on Automatic Control最新文献

Ire Transactions on Automatic Control Pub Date : 1983-07-06 DOI: 10.1109/tac.1961.6429301

G. Castledine

引用次数: 1

An approach to self-adaptive control based on the use of time moments and a model reference 基于时间矩和模型参考的自适应控制方法

Ire Transactions on Automatic Control Pub Date : 1962-10-01 DOI: 10.1109/TAC.1962.1105499

M. Moe, G. Murphy

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引用次数: 5

Vapor jet control of space vehicles 航天飞行器的蒸汽喷射控制

Ire Transactions on Automatic Control Pub Date : 1962-10-01 DOI: 10.1109/TAC.1962.1105501

J. Vaeth

{"title":"Vapor jet control of space vehicles","authors":"J. Vaeth","doi":"10.1109/TAC.1962.1105501","DOIUrl":"https://doi.org/10.1109/TAC.1962.1105501","url":null,"abstract":"This paper describes a reaction jet attitude control technique which affords significant advantages in terms of accuracy, reliability, fuel economy and operational flexibility. These advantages are realized by the use, in combination, of low-thrust vapor jets and time-dependent on-off switching circuits. An accuracy potential comparable to inertia wheel control is thus provided, while the proverbial wheel problems of speed saturation, bearing life, threshold nonlinearities, gyroscopic coupling and vibration excitation are avoided. Very-low thrust magnitudes are attained by simply opening a small orifice to allow fuel to vaporize into the surrounding vacuum. Fuel storage, pressurization, circulation and mixing requirements are thus minimized. By augmenting conventional on-off valve switching circuitry with electronic networks that generate thrust pulses of small but constant time duration, vehicle angular rate can be controlled to a very-low threshold. This minimizes fuel consumption and valve cycling frequency. The capabilities and limitations of this design approach were substantiated by an analog computer program incorporating breadboard switching circuits, and by vacuum chamber testing of critical components. These technique and component developments are applicable to such space missions as astronomical observation, earth reconnaissance and stellar navigation. Design guides are presented for synthesizing a reaction jet system to meet any particular set of performance specifications.","PeriodicalId":226447,"journal":{"name":"Ire Transactions on Automatic Control","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1962-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127852363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Optimal stochastic control 最优随机控制

Ire Transactions on Automatic Control Pub Date : 1962-10-01 DOI: 10.1109/TAC.1962.1105490

H. Kushner

引用次数: 131

Guidance theory and extremal fields 指导理论与极值场

Ire Transactions on Automatic Control Pub Date : 1962-10-01 DOI: 10.1109/TAC.1962.1105503

H. Kelley

引用次数: 104

An algorithm for stochastic control through dynamic programming techniques 基于动态规划技术的随机控制算法

Ire Transactions on Automatic Control Pub Date : 1962-10-01 DOI: 10.1109/TAC.1962.1105502

P. Chen

{"title":"An algorithm for stochastic control through dynamic programming techniques","authors":"P. Chen","doi":"10.1109/TAC.1962.1105502","DOIUrl":"https://doi.org/10.1109/TAC.1962.1105502","url":null,"abstract":"An algorithm based on the concept of state and dynamic programming is derived for designing an optimum controller for a linear plant subject to noise. The controller is optimal in the sense that the behavior of the plant satisfies the expected mean quadratic performance index (EMQPI) defined in the paper. The algorithm generates the sequence of control signals which minimize the EMQPI. In addition, it gives the minimum of the EMQPI for the specified sequence of control signals. The control signal is found to consist of two components: 1) a linear combination of the system state variables, and 2) a noise-balance component which minimizes the noise-induced deviation of the actual plant output from the desired output. An example is given to illustrate the iterative procedure and the asymptotic behavior of the algorithm. The design is optimal for a class of system inputs, and is applicable to both sampling and continuous systems. The design procedure is developed to make full use of a digital computer. The basic principles of dynamic programming to the treatment of stochastic control processes are clearly illustrated in an introductory form so that it will be of interest to control engineers who may wish to familiarize themselves with dynamic programming techniques.","PeriodicalId":226447,"journal":{"name":"Ire Transactions on Automatic Control","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1962-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129988314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

The operational solution of difference-differential equations using the modified z transform 用修正的z变换求微分方程的运算解

Ire Transactions on Automatic Control Pub Date : 1962-10-01 DOI: 10.1109/TAC.1962.1105491

M. Pai

引用次数: 3

Discussion of "A positional servo with improved characteristics" “一种改进特性的位置伺服”的探讨

Ire Transactions on Automatic Control Pub Date : 1962-10-01 DOI: 10.1109/TAC.1962.1105489

J. Ward, D. Makow

引用次数: 0

A survey of control research in U.S. engineering schools 对美国工程学院控制研究的调查

Ire Transactions on Automatic Control Pub Date : 1962-10-01 DOI: 10.1109/TAC.1962.1105498

J. Ward

引用次数: 0

Discussion of "Stability analysis of nonlinear control systems by the second method of Liapunov" “用Liapunov第二方法分析非线性控制系统的稳定性”的讨论

Ire Transactions on Automatic Control Pub Date : 1962-10-01 DOI: 10.1109/TAC.1962.1105485

G. B. Franklin, B. Gragg, Z. Rekasius, J. Gibson

引用次数: 2