9 results about "Split window" patented technology

An example lidar system includes a housing defining an interior space. The housing includes at least one optical window. The lidar system also includes a rotatable mirror assembly disposed within the interior space. The rotatable mirror assembly includes a transmit mirror portion and a receive mirror portion. The lidar system additionally includes a transmitter disposed within the interior space. The transmitter is configured to emit emission light into an environment of the lidar system along a transmit path. The lidar system also includes a receiver disposed within the interior space. The receiver is configured to detect return light that is received from the environment along a receive path. The lidar system additionally includes at least one optical baffle configured to minimize stray light in the interior space.

The application discloses a general zk-SNARK zero-knowledge proof optimization system and method. The system comprises a trusted device, a prover and a verifier, wherein the prover realizes multi-scalar multiplication operation by using a bucket algorithm, the prover comprises a split window unit, a point reduction unit in a bucket, a window reduction unit and a window aggregation unit, the split window unit splits the multi-scalar multiplication operation into a plurality of subtasks based on a set window, and the window is dynamically set according to Montgomery modular multiplication calculation amount; the point reduction unit in the bucket reduces points on each elliptic curve finite field to a bucket to obtain the result of each subtask; the window reduction unit is used for multiplying the bucket number point with the reduced bucket, and accumulates and reduces the buckets in the same window into one bucket to obtain the window value of each window; and the window aggregation unit obtains the calculation result of the multi-scalar multiplication based on the window value of each window. The application effectively optimizes the execution efficiency of the multi-scalar multiplication, and is beneficial to realizing efficient operation of the zk-SNARK proof generation process.

A power line communication method and a related device relate to the technical field of communication. The method is applied to a head end node, and comprises the following steps: obtaining a split window plan which comprises the number of split windows and the starting time and duration of a first time window; the windowing plan is obtained based on the windowing number and windowing starting time, the windowing starting time comprises zero crossing point time of an alternating current voltage zero crossing point or first reference time, and the first reference time represents network reference time NTB of the head end node; and sending a windowing plan to the tail end node, wherein the windowing plan is used for the tail end node to obtain the coded modulation parameter corresponding to the first time window. The communication efficiency between the communication nodes can be improved.

The utility model relates to a side-by-side window which comprises a window frame, a driving sash and a driven sash, the driving sash and the driven sash are arranged in the window frame, a false mullion is arranged between the driving sash and the driven sash and directly serves as a side sash frame on one side of the driving sash or the driven sash, and the side sash frame is arranged at the joint of the driving sash and the driven sash. The false mullion is directly used as the side sash frame, compared with an original side sash frame and a false mullion, materials are saved, cost is reduced, the width of a middle section bar is narrowed, and the light transmittance of the whole window sash is increased.

The invention discloses a high-spatial-resolution mountainous area surface temperature remote sensing inversion hybrid algorithm, and belongs to the field of thermal infrared quantitative remote sensing research. The method comprises the following steps: constructing a mountainous area thermal infrared radiation transmission model, deducing a definition formula of small-scale self-heating parameters of the mountainous area, further defining the effective emissivity of the mountainous area, and constructing a three-dimensional thermal infrared radiation transmission model of the mountainous area; utilizing a split window algorithm and the simulated on-satellite brightness temperature data of each thermal infrared band, and estimating the optimal combination of the off-ground radiation brightness temperature of each band through band combination optimal configuration; simultaneously separating the mountain land surface temperature and emissivity from the off-ground radiation brightness temperature of each wave band by using a temperature-emissivity separation algorithm; according to the method, a new mountainous area three-dimensional thermal infrared radiation transmission model and a remote sensing inversion hybrid algorithm capable of accurately inverting the high-spatial-resolution mountainous area surface temperature are constructed, and the remote sensing inversion precision of the mountainous area high-spatial-resolution surface temperature is improved.

An example lidar system includes a housing defining an interior space. The housing includes at least one optical window. The lidar system also includes a rotatable mirror assembly disposed within the interior space. The rotatable mirror assembly includes a transmit mirror portion and a receive mirror portion. The lidar system additionally includes a transmitter disposed within the interior space. The transmitter is configured to emit emission light into an environment of the lidar system along a transmit path. The lidar system also includes a receiver disposed within the interior space. The receiver is configured to detect return light that is received from the environment along a receive path. The lidar system additionally includes at least one optical baffle configured to minimize stray light in the interior space.

The application provides a thermal infrared multispectral surface parameter retrieval method based on channel correlation, and belongs to the technical field of remote sensing. The application determines the atmospheric water vapor content through a split window covariance ratio method, and then calculates the preliminary atmospheric transmittance of each channel; the correlation of the atmospheric transmittance is used as an optimization function to correct the preliminary atmospheric transmittance between adjacent channels; the atmospheric uplink radiation is obtained based on an atmospheric multilayer model and the atmospheric transmittance; the ASTER-TES is used to retrieve the surface temperature from the ground radiation brightness after the atmospheric correction, and the preliminary surface parameters are obtained; the transmittance ratio is used to correct the atmospheric transmittance, and the surface temperature is refined. The application directly retrieves the surface temperature and emissivity based on the thermal infrared multispectral image, avoids the restriction of the traditional surface temperature retrieval depending on the auxiliary parameters of the atmosphere and the surface emissivity, and the retrieval error problem caused by the space-time inconsistency of the auxiliary information of the atmosphere and the ground, and improves the accuracy of the surface temperature and the emissivity in the retrieval process.

The application discloses a high spatial resolution mountainous area surface temperature remote sensing inversion hybrid algorithm and belongs to the field of thermal infrared quantitative remote sensing research; the method comprises the following steps: constructing a mountainous area thermal infrared radiation transmission model, deducing a definition formula of a mountainous area small-scale self-heating parameter, defining a mountainous area effective emission rate, and constructing a mountainous area three-dimensional thermal infrared radiation transmission model; using a split window algorithm and simulated on-board brightness temperature data of each thermal infrared band, the optimal combination of the off-ground radiation brightness temperature of each band is estimated through optimal configuration of band combination selection; using a temperature-emission rate separation algorithm, the mountainous area surface temperature and the emission rate are separated from the off-ground radiation brightness temperature of each band at the same time; the application constructs a new mountainous area three-dimensional thermal infrared radiation transmission model and a remote sensing inversion hybrid algorithm capable of accurately inverting the high spatial resolution mountainous area surface temperature, and improves the remote sensing inversion precision of the high spatial resolution mountainous area surface temperature.

A split window air conditioner is provided. The split window air conditioner includes an indoor unit, an outdoor unit, hoses, and a mounting frame, where a wire or pipe between the indoor unit and the outdoor unit passes through the hose; the indoor unit and the outdoor unit are provided on the mounting frame; and the mounting frame is provided with an accommodating groove for accommodating the hoses. The hoses accommodating wires or pipes between the indoor unit and the outdoor unit are accommodated in the accommodating groove. In this way, the wires or pipes between the indoor unit and the outdoor unit are protected from being compressed, excessively bent, or even broken.