Showing papers on "Payload (computing) published in 1971"
TL;DR: In this article, the three-dimensional motion of a non-rigid parachute and pay load system is studied, where both the parachute and payload are assumed to have five degrees of freedom (roll about the axes of symmetry is neglected).
Abstract: The three-dimensional motion of a nonrigid parachute and pay load system is studied. Both the parachute and payload are assumed to have five degrees-of-freedom (roll about the axes of symmetry is neglected). They are coupled together by a fixed-length connector, or riser. The general nonlinear equations of motion are put in a form that is convenient for digital computer solutions. All equations are written in dimensionless form and, using smalldisturbance theory, are linearized. The linear equations are then examined in a stability analysis. A proposed method of checking the linear stability criterion by forming the general solution of the linear equations is discussed. A sample stability analysis is presented to show how the methods developed might be applied to a particular problem. The problem consists of selecting a parachute to stabilize a statically unstable payload. With the methods developed, it is possible to examine in considerable detail the dynamic behavior of a nonrigid parachute and payload system.
38 citations
TL;DR: In this paper, the authors describe a means of economically adding up to fifty VF circuits to a microwave radio system in addition to the regular payload signal without either bringing the payload signal to baseband or adding additional circuitry in the payload path.
Abstract: This paper describes a means of economically adding up to fifty VF circuits to a microwave radio system in addition to the regular payload signal. One feature of this system is its ability to add or extract information at IF repeaters without either bringing the payload signal to baseband or adding additional circuitry in the payload path.
3 citations