Abstract: The title of the invention is the remote sensing of physiological dynamics electromagnetic big data, the related technology belongs to the field of remote sensing of physiology or psychology. The technical problem to be solved by the present invention is the remote sensing of physiological or psychological electromagnetic dynamics of human, animal or plant individuals, the related electromagnetic media could be nucleon, electron, atom, molecule, ion, water, fluid, blood, DNA, RNA, amino acid, sugar, fat, protein, cell, tissue, organ, bone, fruit, flower, leave, stem, bark, and root, etc.

Abstract: A method and apparatus for channel estimation for a three-phase communication system. In one embodiment, the method comprises generating a first plurality of preamble patterns for use in a first data stream of two independent data streams; generating a second plurality of preamble patterns for use in a second data stream of the two independent data streams; transmitting the first and the second data streams via a communications channel comprising a three-wire three-phase system; receiving a version of the first data stream comprising the first plurality of preamble patterns and a version of the second data stream comprising the second plurality of preamble patterns; and generating, based on the received version of the first plurality of preamble patterns and the received version of the second plurality of preamble patterns, a channel estimation matrix for estimating the imbalance of the communications channel.

Abstract: The present invention discloses a digital technology of cultural relics, calligraphies, paintings and original commodities. All object individuals are composed of different astronomical three-dimensional atom-molecular clusters. The non-visible light electromagnetic waves of the characteristic wavelengths or bands in the wavelength range of 30 ?m-100 Mm, which can cause sensitive electromagnetic interactions with the nucleon-electron clusters of various kinds of objects, can be adopted to irradiate object individuals or part of object individual and extract reflected waves and scattered waves of millions or tens of millions of electromagnetic space units at single or multiple interface depths, and the light intensity distributions of extracted reflected waves and scattered waves can be converted to individual-specific identity identification digital matrix codes through analog-digital conversion. The present invention can realize the specific identity identification of various kinds of object individuals.

Abstract: Disclosed are a single plate heat radiation device and a method, and the device includes: a single plate heat radiator, a single plate, a first shielding plate having a panel portion, and a second shielding plate configured for heat radiating. A boss is provided on the second shielding plate. The boss is connected to the single plate radiator through an opening in the single plate and is configured for conducting the heat collected from the single plate by the single plate radiator to the second shielding plate. By means of the present invention, the problem of poor heat radiating effect in the related technology, caused by limited heat radiating area for convective heat radiating and limited heat radiating path for conductive heat radiating, is solved, and thereby the effects of increased heat radiating area and increased heat radiating path are achieved.

Abstract: Disclosed are a structure of a flow measurement sensor based on time-of-flight and a method for installation thereof, the structure comprises at least one pair of a first flow measurement sensor and a second flow measurement sensor vertically installed on a pipeline wall, a beam transmit-receive end both provided respectively at a bottom of the first flow measurement sensor and the second flow measurement sensor and is capable of emitting and receiving beams, a beam straight line formed between a first beam transmit-receive end and a second beam transmit-receive end does not intersect with an axis of the pipeline, and forms, with the axis of the pipeline, an included angle less than 90° .

Abstract: Disclosed are a structure of a flow measurement sensor based on time-of-flight and a method for installation thereof, the structure comprises at least one pair of a first flow measurement sensor and a second flow measurement sensor vertically installed on a pipeline wall, wherein the first flow measurement sensor and the second flow measurement sensor are both provided at a bottom with a beam end capable of emitting and receiving beams, wherein a beam straight line formed between a first beam end and a second beam end does not intersect with an axis of the pipeline, and forms, with the axis of the pipeline, an included angle less than 90°.

Abstract: Disclosed are a single plate heat radiation device and a method, and the device includes: a single plate heat radiator (1), a single plate (9), a first shielding plate (5) having a panel portion, and a second shielding plate (6) configured for heat radiating. A boss (3) is provided on the second shielding plate (6). The boss (3) is connected to the single plate radiator (1) through an opening (4) in the single plate (9) and is configured for conducting the heat collected from the single plate by the single plate radiator (1) to the second shielding plate (6). By means of the present invention, the problem of poor heat radiating effect in the related technology, caused by limited heat radiating area for convective heat radiating and limited heat radiating path for conductive heat radiating, is solved, and thereby the effects of increased heat radiating area and increased heat radiating path are achieved.

Abstract: Method and apparatus for generating a power line communication (PLC) signal. In one embodiment, the method comprises generating a first modulation signal based on at least one data stream; modulating a first carrier signal by the first modulation signal to generate a first signal; generating a second signal by performing a phase shift based on the first signal; and coupling a balanced three-phase PLC signal comprising the first signal, the second signal and a third signal to a three-phase power line.

Abstract: A method and apparatus for channel estimation for a three-phase communication system. In one embodiment, the method comprises generating a first plurality of preamble patterns for use in a first data stream of two independent data streams; generating a second plurality of preamble patterns for use in a second data stream of the two independent data streams; transmitting the first and the second data streams via a communications channel comprising a three-wire three-phase system; receiving a version of the first data stream comprising the first plurality of preamble patterns and a version of the second data stream comprising the second plurality of preamble patterns; and generating, based on the received version of the first plurality of preamble patterns and the received version of the second plurality of preamble patterns, a channel estimation matrix for estimating the imbalance of the communications channel.

Abstract: Method and apparatus for generating a power line communication (PLC) signal. In one embodiment, the method comprises generating a first modulation signal based on at least one data stream; modulating a first carrier signal by the first modulation signal to generate a first signal; generating a second signal by performing a phase shift based on the first signal; and coupling a balanced three-phase PLC signal comprising the first signal, the second signal and a third signal to a three-phase power line.

Abstract: Method and apparatus for generating a balanced three-phase power line communication signal. In one embodiment, the method comprises generating a plurality of modulation signals based on at least one data stream; modulating a plurality of carrier signals by the plurality of modulation signals to generate a balanced three-phase PLC signal comprising a first phase signal, a second phase signal, and a third phase signal; and coupling the balanced three-phase PLC signal to a three-phase power line.

Abstract: Method and apparatus for generating a balanced three-phase power line communication signal. In one embodiment, the method comprises generating a plurality of modulation signals based on at least one data stream; modulating a plurality of carrier signals by the plurality of modulation signals to generate a balanced three-phase PLC signal comprising a first phase signal, a second phase signal, and a third phase signal; and coupling the balanced three-phase PLC signal to a three-phase power line.

Abstract: A method for determining a velocity of sound traveling in a fluid in a borehole, the method including: placing a logging instrument in the borehole, the instrument including a first acoustic transducer and a second acoustic transducer that are offset from each other in distance to a wall of the borehole, the first transducer adapted to emit a first acoustic wave that is reflected by the wall and the second acoustic transducer adapted to emit a second acoustic wave that is reflected by the wall; determining a difference between a travel time of the first acoustic wave and a travel time of the second acoustic wave; and calculating the velocity using the difference and the offset.

Abstract: Provided are improved systems and methods for spread spectrum communication employing hybrid Eb/No and pilot-based finger lock determination for RAKE receivers. Finger lock thresholds are periodically set using an extended time-averaged Eb/No traffic signal estimate for each finger mapped to an Ec/No pilot level, where the extended time-averaged Eb/No estimate is inversely proportional to the mapped Ec/No level, thus, decreasing the required Ec/No level when the Eb/No estimate increases and increasing the required Ec/No level when the Eb/No estimate decreases. Existing pilot-based finger lock algorithms may be used with the Ec/No threshold set using the extended time-averaged Eb/No estimate. When pilot signals are weak but traffic signals remain strong, fingers will remain locked to increase the combiner output signal-to-noise ratio.

Abstract: A method for determining a velocity of a flowing fluid includes estimating a Reynolds number for the flowing fluid; comparing the estimated Reynolds number with a selected range; and determining the velocity of the flowing fluid based on a flow model selected from a laminar flow model, a turbulent flow model, and a partial laminar flow model. An ultrasonic flow meter includes a plurality pairs of transducers configured to form a plurality of measurement paths in a pipe, wherein the plurality of measurement paths are arranged asymmetrically relative to a centerline of the pipe.

Abstract: A method for determining a velocity of a flowing fluid includes estimating a Reynolds number for the flowing fluid; comparing the estimated Reynolds number with a selected range; and determining the velocity of the flowing fluid based on a flow model selected from a laminar flow model, a turbulent flow model, and a partial laminar flow model. An ultrasonic flow meter includes a plurality pairs of transducers configured to form a plurality of measurement paths in a pipe, wherein the plurality of measurement paths are arranged asymmetrically relative to a centerline of the pipe.

Abstract: Provided are improved systems and methods for spread spectrum communication employing hybrid Eb/No and pilot-based finger lock determination for RAKE receivers. Finger lock thresholds are periodically set using an extended time-averaged Eb/No traffic signal estimate for each finger mapped to an Ec/No pilot level, where the extended time-averaged Eb/No estimate is inversely proportional to the mapped Ec/No level, thus, decreasing the required Ec/No level when the Eb/No estimate increases and increasing the required Ec/No level when the Eb/No estimate decreases. Existing pilot-based finger lock algorithms may be used with the Ec/No threshold set using the extended time-averaged Eb/No estimate. When pilot signals are weak but traffic signals remain strong, fingers will remain locked to increase the combiner output signal-to-noise ratio.

Abstract: A variable bit rate coder, and an associated method, for encoding a frame of speech, such as frames of data generated during operation of a communication station operable in a cellular communication system. Selection of the coding rate is made responsive to indicia of actual coding performance of a coder at more than one coding rate.

Abstract: A speech coder and a method for speech coding wherein the speech signal is represented by an excitation signal applied to a synthesis filter. The speech is partitioned into frames and subframes. A classifier identifies which of several categories the speech frame belongs to, and a different coding method is applied to represent the excitation for each category. For some categories, one or more windows are identified for the frame where all or most of the excitation signal samples are assigned by a coding scheme. Performance is enhanced by coding the important segments of the excitation more accurately. The window locations are determined from a linear prediction residual by identifying peaks of the smoothed residual energy contour. The method adjusts the frame and subframe boundaries so that each window is located entirely within a modified subframe or frame.

Abstract: A process for generation of codevectors in the production of synthetic speech in a communication system employing code-excited linear prediction (CELP) is implemented by dividing frames of sampled speech into sub-frames for which are generated codevectors suitable for excitation of synthesizer filters in the low-bit mode of signal transmission. Vector quantization (VQ) is employed with an algebraic representation of the CELP. A reduction of a sub-frame of 6.7 milliseconds to a vector representation of only 8 pulses results in an insufficiency of candidate codevectors, which insufficiency is overcome by a circular shifting of the codevectors at a cyclical rate equal to the pitch of the original voice signal.