31results about How to "Reduce error impact" patented technology

Provided is a system and method for scrambling based peak-to-average power ratio reduction without side information. One of a set of scrambling sequences is used at the transmitter which results in either a minimum or acceptable peak power. Rather than transmitting side information identifying which of the set of scrambling sequences was selected, the scrambling sequence is also applied to the CRC, and using syndrome detection the receiver is capable of determining which scrambling sequence was used at the transmitter and can proceed with the necessary de-scrambling.

A method of determining a wavefront of a received light beam includes: (a) receiving a light beam; (b) producing a group of light spots from the light beam; (c) qualifying a set of the light spots for use in determining a wavefront of the received light beam; and (d) determining the wavefront of the received light beam using the qualified set of light spots. Qualifying the set of light spots includes, for each light spot: calculating a first calculated location of the light spot using a first calculation algorithm; calculating a second calculated location of the light spot using a second calculation algorithm; and when a difference between the first and second calculated locations for the light spot is greater than an agreement threshold, excluding the light spot from the set of light spots and/or from being employed in determining the wavefront of the received light beam.

One of first through fourth target state of charge levels, which are set at values that increase gradually over time, is selected on the basis of an ON/OFF state of a specific current consumer installed in the vehicle and a state of charge immediately preceding an engine stoppage. A target state of charge is set on the basis of the selected target state of charge level and an elapsed time after the lead storage battery is installed in the vehicle, whereupon the target state of charge is compared with the actual state of charge of the lead storage battery. The lead storage battery is charged in accordance with the comparative result.

A vehicle speed calculator includes a vehicle speed calculation unit for calculating a vehicle speed from a traveled distance per unit time of a feature point in a captured image shot by a camera for capturing a road surface, a reference distance mark irradiation unit and an image reference distance detection unit. The reference distance mark irradiation unit irradiates a reference distance mark to the road surface in parallel with an optical axis of the camera. The reference distance mark is formed in such a manner as to have a reference distance in a longitudinal direction of a motorcycle. The image reference distance detection unit detects an image reference distance, the longitudinal length of the reference distance mark in the shot image. The vehicle speed calculation unit calculates the vehicle speed from the traveled distance using the image reference distance and the reference distance.

The invention relates to a method for extracting and judging operation data stability of ship electromechanical equipment. The method comprises the following steps: acquiring ship electromechanical equipment data, preliminarily judging data stability, calculating the minimal length of a stable inspection data segment, judging data stability point by point, correcting the stability inspection result as well as storing and outputting results. The defects that true stable data is difficult to judge simply by the statistic method and large-range judgment error occurs in the prior art are overcome.Through the judgment method, the stable operation data of the electromechanical equipment is extracted, accuracy and reliability of modeling, evaluation and even optimized decision can be improved, and important significance in analysis and research of ship data is achieved.

The invention provides a site aggregation method and device in an electronic map, computer equipment and a medium. The method comprises the following steps: acquiring a same station list; clustering the stations in the same station list according to the geographic positions of the stations in the same station list; selecting one station from each class clustered by the same station list as a secondary aggregation station in the class; obtaining a similar station list; clustering the stations in the similar station list according to the geographic positions of the stations in the similar station list; and selecting one station from each class clustered by the similar station list to serve as a first-level aggregation station in the class. According to the embodiment of the invention, densestacking of stations with close distances and same or similar names on the electronic map is avoided, the station search convenience is improved, and station line data errors are reduced.

The invention discloses a reader system. The reader system comprises a processor, a data adapter, a power supply end power supply carrier module, a bus, a plurality of reader-writers and a plurality of lamp boxes. The processor is used for controlling the working state of the reader-writer through the bus. The data adapter is electrically connected with the bus and the processor respectively and is used for enabling the processor and the bus to carry out asynchronous communication. The power supply end power supply carrier module is used for filtering a transmission signal on the bus so as toextract a carrier signal. The bus comprises a power line and a CAN bus, the power line is used for transmitting a power signal, and the CAN bus is used for transmitting a carrier signal. The lamp boxis used for indicating the working state of the reader-writer. The invention further discloses a reader setting method. By means of the reader system and the reader setting method, multiple readers can be connected at the same time, and the working states of the readers can be rapidly displayed.

The invention provides a multi-level supervision crowd counting method and device, a medium and electronic equipment, and the method comprises the following steps: enabling an image to be sequentiallyinputted into all subordinate feature extraction modules of a feature extraction module 1 through the feature extraction module 1, so as to obtain an output feature map corresponding to each featureextraction module i; fusing the output feature map corresponding to each feature extraction module i and the output feature map corresponding to each subordinate feature extraction module of the feature extraction module i; respectively carrying out density map estimation on each fusion result so as to respectively obtain a sub-density map corresponding to each fusion result; performing joint calculation on the sub-density maps to obtain a final density map; and obtaining the total number of people according to the final density map. The multi-level supervised network adopted by the inventioncan fuse a plurality of density maps to generate a more accurate final density map, so that some errors are avoided, the error influence is reduced, and the total number of people can be better counted.

The invention relates to a method for providing information (6) about at least one object (5) in a surrounding region (4) of a motor vehicle (3) of a vehicle fleet, wherein the information (6) is recorded in the motor vehicle (3) and transferred to a traffic information collection device (2) together with position data (8) of the motor vehicle (3) and provided, wherein the information (6) is provided together with at least a first geographic position (11) of the object (5) and a second geographic position (12) of the object (5), and the second geographic position (12) is determined according to the first geographic position (11) and provided.

The invention relates to a method (54) for operating a brushed commutator motor (12) of an adjusting drive (8) in a motor vehicle, particularly a window lifter (2), having a rotor (24) and having a stator (22). An angular position (Alfa) of the rotor (24) with respect to the stator (22) is determined. The angular position (Alfa) is used to determine a ripple (60) within the torque (M), which ripple can be expected on the basis of the commutation. The motor current (I) is adapted such that the amplitude of the ripple (60) that can be expected remains below a determined limit value. The invention additionally relates to an adjusting drive (8) of a motor vehicle.

The invention discloses a posterior probability algorithm based on a weighted decision tree. According to the method, based on a conventional decision tree algorithm, a weight influence factor is added when a decision tree is split, and the influence of signal-to-noise ratio classification is improved, so the final information entropy of nodes with high signal-to-noise ratio is enhanced, the overall probability distribution relation is effectively changed by the changed information entropy, and the influence of untrusted classification is reduced. According to the invention, the error influence caused by abnormal data can be effectively reduced; the dual polarization phenomenon caused by unbalanced data sample distribution is reduced; the influence of credibility is brought in, so the reliability of the model is improved; and an over-fitting phenomenon caused by data exception is reduced.