GOAT 发表于 2025-3-30 08:49:41
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Problems in Optimal Control of Macroeconomic Systems, the national economy is, by its very nature, a multidimensional system and the feedback control theory of the 1950 time period was generally unable to cope with this multidimensionality in a useful manner. Also, the development of dynamic macroeconomic models was not at a level for which meaningful为敌 发表于 2025-3-31 20:41:49
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A Programme for Orbit Determination Associated with Launching and Station Keeping of 24 Hour Satelleping of a geostationnary satellite. The observations used are azimuth and elevation (or the equivalent) of a single autotrack antenna. This version of the method is intended for use in ELDO launchings..It should be noted, however, that the method can easily be extended to cope with other measuremen