Electronics & Computers

Biofeedback System for Optimal Athletic Performance

Langley Research Center, Hampton, Virginia ZONE (Zeroing Out Negative Effects) is a method of biofeedback training for optimal athletic performance. ZONE is designed to improve athletes’ responses to stress, anxiety, and loss of concentration during competition. In the training environment, when the user successfully attains an optimal target state of psychophysiological functioning, the technology informs and/or rewards the user through real-time physical changes in the athletic equipment. For example, in the training setting, a golfer can work toward optimal concentration in the act of putting, leading to improved performance in real situations.

Posted in: Electronics & Computers, Briefs

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Methods for Clock and Reset Synchronization in a CMOS Integrated Circuit

These methods ensure fault-free operation in high-integrity systems. Lyndon B. Johnson Space Center, Houston, Texas In high-integrity systems, a method of assuring integrity called a self-checking pair is employed. A self-checking pair is a logical grouping of two of the same devices performing the same operation and cross-checking each other to ensure correct operation. In this manner, a single fault on one will be detected by its partner, and the appropriate action can be taken to both recover the fault and ensure the fault does not propagate.

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Wideband MMIC Distributed Amplifier-Based Microwave Power Module

The solid-state module operates as a radar, communication, or navigation system. John H. Glenn Research Center, Cleveland, Ohio This innovation is a wideband, high-power, high-efficiency, all-solid-state microwave power module (SSMPM) or amplifier for a multifunction spacecraft payload that operates, depending on the need, as a radar system, communication system, or navigation system. The construction of the module is based on a wideband multi-stage amplifier design. The low-power stage is a high-efficiency GaAs pHEMT-based MMIC (monolithic microwave integrated circuit) distributed amplifier. The medium-power stage is either a high-efficiency GaAs pHEMT (high-electron-mobility transistor) or GaN HEMT-based MMIC distributed amplifier. The high-power stage is a high-efficiency GaN HEMT-based MMIC distributed amplifier.

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Communication Monitoring System for Enhanced Situational Awareness

A number of innovations are used to increase situational awareness and reduce operator fatigue. Ames Research Center, Moffett Field, California The system and method of reconfigurable Auditory-Visual Display creates a multi-mode communications environment with the express intent of increasing situational awareness for the operator (controller), and for reducing operator fatigue. Situational awareness is increased by a number of innovations, such as spatially separating each voice communication channel and allowing a single voice channel to be prioritized, while still allowing other channels to be monitored. The controller can see real-time video from each of the controlled individuals, and sensor data from these individuals can be collected electronically rather than being presented over a voice channel. It also provides the controlling individual an interface to record and transmit event data.

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Method for Visualization of Analog Signals

The method can be used to identify changes or faults in a system. Ames Research Center, Moffett Field, California In this innovation, a method makes use of a new technique for describing analog information based on the roots of polynomial functions of infinite degree. Monotonic analog signals are transformed into characters that are fused into a two-dimensional composite visualization of the generating signal information. Examples of such signals include those arising from sensors, electronic equipment, or mechanical devices. Traditionally, such information is displayed by indicators, warning lights, or dials that discard the original content and temporal evolution of the source. Hence, they are not invertible back to the original signal for further examination.

Posted in: Electronics & Computers, Software, Briefs

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Time-Multiplexed Pipelined FFT Implementation

Goddard Space Flight Center, Greenbelt, Maryland A fast Fourier transform (FFT) was developed as part of the Soil-Moisture Active/Passive (SMAP) project. The FFT was created on 16-bit data arriving at a rate of 48 MHz to run on a resource-constrained, space-grade field programmable gate array (FPGA).

Posted in: Electronics & Computers, Software, Briefs

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Method for Authorizing Critical Effector Commands in a Space-Based Integrated Modular Avionics System

Lyndon B. Johnson Space Center, Houston, Texas An Integrated Modular Avionics (IMA) architecture provides a common platform for software partitions with shared processing and input/output (I/O) resources. A key feature of the IMA architecture is I/O partitioning. An IMA system will prevent one software partition from changing an I/O resource that is owned by another software partition. This prevents one software partition from controlling the outputs of another due to hardware fault or software error. The IMA system must have protection mechanisms in place to enforce the I/O partitioning.

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