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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Automatic gain control circuit for a radio receiver handles a wide range of input signal levels without overloading the output stage. The transistorized circuit maintains a relatively constant output by varying attenuation of the input signal.
Earth coverage patterns with high-gain antennas on stationary communications satellites
Engineering model design of high gain self- steering antenna array for satellite communication applications
High gain omnidirectional satellite system design, using planar and circular multiple beam arrays and solid state switching
Manual gain control remote-control subsystem for Mars deep space station radar receiver
Photomultiplier tube socket assembly with high gain and clean output signals for viewing organic scintillator light pulses
Optimal gain settings for atmospheric turbulence in 407 Jimsphere wind profiles
Input-output stability conditions of time-varying nonlinear feedback systems obtained, using concepts of loop gain, conicity and positivity
Servo amplifier feedback system, in which the phase sensitive detection, low pass filtering, and multiplication functions required for quadrature rejection, are preformed by light-controlled photoresistors, eliminates complex circuitry. System increases gain, improves signal-to-noise ratio, and eliminates the necessity for compensation.
Nonreciprocal gain control is used in a ring laser where the two contracirculating beams may have differing intensities because of the residual Faraday rotation and other secondary nonreciprocal effects.
Equations for calculating control gains with filters for rigid body motion of space vehicle
Gemini program evaluation, discussing information gained from experiments performed during flights
Optimal gain settings for atmospheric turbulence in 407 atmosphere wind profiles
Method to define minimum phase transfer function within bounded region of phase gain specifications at several discrete frequencies
Feasibility of optimal control theory in synthesis of manual control system - human compensatory tracking performance with quickened display, state variable display, and display gains
Gain measurements of standard electromagnetic horn antennas for use in calibrating millimeter wave, parabolic radio telescopes
Computer program determining gain distribution of uncertainty region from antenna pattern data
Linear regulator systems design with piecewise constant feedback gains determined by convergent digital computational algorithm