Abstract: A method and device for estimating a carrier frequency offset, and a computer-readable storage medium are provided. The method includes: determining a target area where a phase discrimination signal is located, wherein the target area is one of N numbers of candidate areas, the N numbers of candidate areas correspond to different value ranges, an union range of the N numbers of candidate areas is [?, ??], and N?2; determining a first estimation value of a direct current component corresponding to the phase discrimination signal based on the target area; and performing a carrier frequency offset compensation on the phase discrimination signal based on the first estimation value of the direct current component.

Abstract: A method and device for estimating a carrier frequency offset, and a computer-readable storage medium are provided. The method includes: determining a target area where a phase discrimination signal is located, wherein the target area is one of N numbers of candidate areas, the N numbers of candidate areas correspond to different value ranges, an union range of the N numbers of candidate areas is [?, ??], and N?2; determining a first estimation value of a direct current component corresponding to the phase discrimination signal based on the target area; and performing a carrier frequency offset compensation on the phase discrimination signal based on the first estimation value of the direct current component.

Abstract: A sleeper train carriage and a sleeper train, a compartment (100) and an aisle (101) is provided within the sleeper train carriage, and a partition wall is provided between the compartment (100) and the aisle (101). The partition wall includes a compartment-side partition wall (1) and an aisle-side partition wall (2). The aisle-side partition wall (2) includes a fixed plate (21) and a movable plate (22) which are arranged in a vertical direction, the movable plate (22) is located above the fixed plate (21), an upper end of the movable plate (22) is fixedly connected to one end of a top plate of the aisle (3), the other end of the top plate of the aisle (3) is detachably connected to the side wall (4) of the train body, and a lower end of the movable plate (22) is hinged to the train body.

Abstract: A rail train is provided in the embodiment of the present disclosure, comprising: a semi-enclosed air duct, the semi-enclosed air duct comprises an air duct top and an air duct side; the air duct top is fixed with an inner top of a rail train body, the air duct side is connected on both sides of the air duct top and extends downward; a large side top, and the the large side top is fixed to the rail train body as a part of a rail train roof, and the large side top is top-sealed at a bottom of the air duct side to form an air passage with the air duct. The rail train solves the technical problem that the roof and the air duct of the rail train are not conducive to overall weight reduction of the rail train.

Abstract: The present invention discloses a method for generating a fluorescent photograph using a fluorescence microscope, wherein after a fluorescence image generated by the light of an optical channel is snapped, the fluorescent image generated by the light of the optical channel can be re-snapped and the original fluorescent image can be replaced with the re-snapped fluorescent image, without re-snapping a fluorescent image generated by the light of other optical channel which has already been snapped. Therefore, the time during which the sample is exposed to light is reduced, the sample is prevented from being bleached and the snapping time is saved.

Abstract: Provided are a sub-carrier estimation method in a multi-carrier communication system and an apparatus. The method includes: receiving a data frame transmitted by a transmitting end, and extracting a training sequence from the data frame; performing fast Fourier transform operation on the training sequence and a preset reference sequence, respectively, to obtain frequency domain data of the training sequence and frequency domain data of the reference sequence, and conjugately multiplying the two kinds of frequency domain data; extracting real part of conjugate multiplication result; averaging values in each column of an M×N array, respectively, to obtain an output array of 1 row and N columns; and estimating, according to the value in each column of the output array of 1 row and N columns, whether valid data is transmitted over N sub-carriers corresponding to the output array of 1 row and N columns.

Abstract: The present invention discloses a method for generating a fluorescent photograph using a fluorescence microscope, wherein after a fluorescence image generated by the light of an optical channel is snapped, the fluorescent image generated by the light of the optical channel can be re-snapped and the original fluorescent image can be replaced with the re-snapped fluorescent image, without re-snapping a fluorescent image generated by the light of other optical channel which has already been snapped. Therefore, the time during which the sample is exposed to light is reduced, the sample is prevented from being bleached and the snapping time is saved.

Abstract: A sleeper train carriage and a sleeper train, a compartment (100) and an aisle (101) is provided within the sleeper train carriage, and a partition wall is provided between the compartment (100) and the aisle (101). The partition wall includes a compartment-side partition wall (1) and an aisle-side partition wall (2). The aisle-side partition wall (2) includes a fixed plate (21) and a movable plate (22) which are arranged in a vertical direction, the movable plate (22) is located above the fixed plate (21), an upper end of the movable plate (22) is fixedly connected to one end of a top plate of the aisle (3), the other end of the top plate of the aisle (3) is detachably connected to the side wall (4) of the train body, and a lower end of the movable plate (22) is hinged to the train body.

Abstract: Provided are a sub-carrier estimation method in a multi-carrier communication system and an apparatus. The method includes: receiving a data frame transmitted by a transmitting end, and extracting a training sequence from the data frame; performing fast Fourier transform operation on the training sequence and a preset reference sequence, respectively, to obtain frequency domain data of the training sequence and frequency domain data of the reference sequence, and conjugately multiplying the two kinds of frequency domain data; extracting real part of conjugate multiplication result; averaging values in each column of an M×N array, respectively, to obtain an output array of 1 row and N columns; and estimating, according to the value in each column of the output array of 1 row and N columns, whether valid data is transmitted over N sub-carriers corresponding to the output array of 1 row and N columns.

Abstract: The invention provides a carrier frequency offset processing method, an apparatus and a receiver. The method comprises: receiving, through a software and hardware interface, an estimated value of frequency offset of a data packet transmitted by an automatic frequency offset control module; collecting the received estimated value of frequency offset of the data packet and performing statistical analysis to obtain a statistical value of carrier frequency offset between a receiving module and a transmitting module; and dynamically adjusting, according to the statistical value of carrier frequency offset, a bandwidth of a low-pass filter through the software and hardware interface. The invention realizes dynamic adjustment of the bandwidth of the low-pass filter in the process of a receiver receiving signals, solving the problem of the impact on processing performance brought by the fixed bandwidth of a low-pass filter in the prior art.

Abstract: The invention provides a carrier frequency offset processing method, an apparatus and a receiver. The method comprises: receiving, through a software and hardware interface, an estimated value of frequency offset of a data packet transmitted by an automatic frequency offset control module; collecting the received estimated value of frequency offset of the data packet and performing statistical analysis to obtain a statistical value of carrier frequency offset between a receiving module and a transmitting module; and dynamically adjusting, according to the statistical value of carrier frequency offset, a bandwidth of a low-pass filter through the software and hardware interface. The invention realizes dynamic adjustment of the bandwidth of the low-pass filter in the process of a receiver receiving signals, solving the problem of the impact on processing performance brought by the fixed bandwidth of a low-pass filter in the prior art.