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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 5. Отображено 5.
05-05-2004 дата публикации

小区搜索方法和通信终端设备

Номер: CN0001494809A
Принадлежит:

... 以两级执行同步码标识和同步定时检测。在第一级处理(ST1至ST7)中,根据接收信号与候选同步码之间的粗相关,而粗略判决该同步码或该同步定时,或者精确计算其中之一。在第二级处理(ST8至ST12)中,执行精确的同步码标识和同步定时检测。 ...

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09-05-2023 дата публикации

Method for predicting amount of hydrogen in steel, method for controlling amount of hydrogen in steel, method for manufacturing steel strip, method for generating model for predicting amount of hydrogen in steel, and device for predicting amount of hydrogen in steel

Номер: CN116096928A
Принадлежит:

Provided are a method for predicting the amount of hydrogen in steel in a steel strip, a method for generating a model for predicting the amount of hydrogen in steel, and a device for predicting the amount of hydrogen in steel, which predict the amount of hydrogen in steel in a steel strip with high accuracy. Also provided are a method for controlling the amount of hydrogen in steel and a method for manufacturing a steel strip, which effectively reduce the amount of hydrogen in steel. A method for predicting the amount of hydrogen in steel in a steel strip on the downstream side of a reheating step in a continuous hot-dip plating facility that executes a manufacturing step including an annealing step, a plating step, and a reheating step for the steel strip, the method comprising: an input data acquisition step for acquiring input data; acquiring, as input data, one or more parameters selected from operating parameters of the continuous hot-dip plating facility and phase change rate information ...

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28-07-2004 дата публикации

接收装置及自动频率控制方法

Номер: CN0001516929A
Принадлежит:

A searcher 105 creates a delay profile of a known symbol portion of a received base band signal by using a basic code, and a number-of-codes/kind-of-code determining unit 106 determines the number and kind of shift codes being used, on the basis of the delay profile. Correlators 108-1 to 108-n compute the correlation values between the known symbol first half of the received base band signal and the shift code. Correlators 109-1 to 109-n compute the correlation values between the known symbol second half of the received base band signal and the shift codes. A phase estimation unit 119 estimates the phase rotation per unit time by using the sum of the output signals of the correlators 108-1 to 108-n and the sum of the output signals of the correlators 109-1 to 109-n. As a result, the influence of the cross-correlation of spreading codes and the influence of noises are suppressed, so that the phase rotation between the known symbols can be estimated highly precisely to realize highly precise ...

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25-08-2004 дата публикации

无线电通信装置和无线电通信方法

Номер: CN0001164062C
Принадлежит:

... 本发明揭示一种无线电通信装置和无线电通信方法,包括用补偿器(109、110)去除包含在变换成数字的A/D变换器(105~108)输出信号中的频率偏移,用加权系数计算器(111)、复数乘法器(112、113)和加法运算器(114)从去除频率偏移后的信号中去除干扰分量,并在延迟检波器(115)解调去除干扰分量后的信号。而且,用解码器(116)对解调信号进行解码,同时用频率偏移估算器(117)由解调信号和已知码元估算频率偏移。 ...

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21-04-2023 дата публикации

Gas wiping nozzle and method for manufacturing molten metal plated metal strip

Номер: CN115997044A
Принадлежит:

The invention provides a gas wiping nozzle and a method for manufacturing a molten metal plated metal strip. The gas wiping nozzle can uniformly maintain gaps in the width direction of a slit in the length direction even under a high-temperature atmosphere when the slit is manufactured in a divided mode in the length direction of the slit. In a gas wiping nozzle (10), a first nozzle member (11) and a second nozzle member (12) are each divided into two or more nozzle members (11A-11C) and (12A-12C) along the longitudinal direction (X) of a slit (14). When the thickness of the slit (14) of the first nozzle member (11) in the width direction Z is T1 and the thickness of the slit (14) of the second nozzle member (12) in the width direction Z is T2, the length of the dividing surface (20) in the cross section of each of the first nozzle member (11) and the second nozzle member (12) is 1.5 T1 or more with respect to the first nozzle member (11) and 1.5 T2 or more with respect to the second nozzle ...

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