Zhejiang University

Sunwave Communications Co., Ltd.

Alibaba Group Holding Limited

Hangzhou Lifereal Biotechnology Co., Ltd.

Zhejiang Windey Co., Ltd.

Xin Wang

Wenquan Wu

Ailin Ren

Zhiwei Xu

Chunyi Song

Qingsong Chen

Hongwei Luo

Chunjie Yang

Xiaoyu Tang

Rulong Chu

Jianyang Mao

Qian Song

Wenhai Wang

Dingke Yu

Bangxiang Ling

Wenwei Fang

Xiangzhao Zheng

Huan Li

Wenfei Xu

Yuzhang Xi

Hangye Ye

Donghao Pan

You Ying

The present disclosure provides a method for generate array element excitation of a conformal array based on an iterative algorithm, the method comprises obtaining a first index of a pattern of an array antenna by a processor; obtaining multiple optimization objectives according to design indexes of the array antenna by the processor; based on the first index, iteratively determining, by the processor, a first array element excitation satisfying a dynamic range ratio (DRR) of an array element excitation amplitude under the first index through a preset conversion relationship and a preset approach; based on the first array element excitation, obtaining, by the processor, a second array element excitation satisfying the multiple optimization objectives under a constraint of the DRR of the array element excitation amplitude through a solution algorithm; based on the second array element excitation, the design indexes, and basic parameters, generating, by the processor, the array antenna, the basic parameters including the number of array elements, a working center frequency, and an array element spacing of the array antenna.

Method for generate array element excitation of a conformal array based on an iterative algorithm

The present disclosure relates to an uplink summation method and device, and a distributed antenna system. The method comprises: acquiring uplink CPRI data streams of a channel of an AU or an EU in a system, performing bit width extension on the CPRI data streams, and performing full precision summation; extracting an orthogonal IQ signal in the CPRI data streams after summation, and determining a reference value and a detected value of the IQ signal so as to determine attenuation values corresponding to fast fading and slow amplification of the IQ signal; generating a gain table corresponding to CPRI data according to carrier mapping information of the system and the attenuation values; and shifting the IQ signal in the CPRI data streams according to the gain table, and truncating the shifted IQ signal with a preconfigured bit width.

Uplink summation method and device, and distributed antenna system

A method and device for blast furnace state monitoring based on multi-modes fusion. In the process of blast furnace state monitoring, the concept of sub-mode is introduced, and the method for pre-acquisition and multi-modes weighted fusion by sub-mode is proposed to monitor blast furnace state. After preprocessing the main parameter data of the blast furnace, several sub-modes of the blast furnace and their corresponding blast furnace state indication variable data are obtained by means of a mean shift clustering algorithm. Taking the real-time parameter data of the blast furnace as inputs, the Euclidean distance between the real-time parameter data of the blast furnace and each sub-mode is calculated, and the sub-modes are weighted and fused according to the distance, and the fusion result is the real-time blast furnace state, so as to realize the real-time state monitoring of the blast furnace in a smooth operation.

Method and device for monitoring blast furnace state based on multi-modes fusion

The present disclosure relates to a method, device, and apparatus for time division duplex synchronization for a distributed antenna system, and a medium. The method comprises: decoding a SS/PBCH block from a time division duplex cell, and obtaining an index of the SS/PBCH block; determining, according to the index of the SS/PBCH block, a starting position of a radio frame in which the SS/PBCH block is located; and performing time division duplex synchronization according to the starting position of the radio frame and a preset uplink and downlink configuration of the radio frame.

Method, device and apparatus for time division duplex synchronization for distributed antenna system, and medium

The present disclosure provides a method for conformal array pattern synthesis based on a solution space pruning particle swarm optimization algorithm (PSO), the method comprises taking a suppression index of a peak side lobe level (SLL) as a first index, obtaining the first array element excitation satisfying the first index under the constraint of the dynamic range ratio (DRR) of the array element excitation amplitude through iterations; obtaining a second array element excitation satisfying the multiple optimization objectives under the constraint of the DRR of the array element excitation amplitude by a solution algorithm according to the first array element excitation.

Method for conformal array pattern synthesis based on solution space pruning particle swarm optimization algorithm

A gene detection method, a gene detection kit, and a gene detection device, including the following steps: providing a plurality of separation cavities on a kit, using a plunger to separate adjacent separation cavities, and respectively providing a lysate solution, a washing solution and a reaction solution in the separation cavities; when detecting a sample, pushing each plunger to align a plunger hole of the plunger with the separation cavity, thereby making the separation cavities interconnected; then, controlling magnetic beads in the kit to drive the sample to be tested to pass through the separation cavities in sequence by an electromagnetic control method, carrying out a lysing, a washing and a reaction in sequence; and finally, performing a optical detection on a gene in the reaction solution from outside.

Gene detection method, gene detection kit and gene detection device

The present disclosure provides a method for compensating gain flatness of a transceiver including: a method for compensating gain flatness of a receiver, which compensates gain flatness of a receiving channel by using a complex-coefficient FIR filter in digital domain; and a method for compensating gain flatness of a transmitter, which compensates gain flatness of a transmitting channel by using a complex-coefficient FIR filter in digital domain. The method according to the present disclosure can balance compensation accuracy and calculation amount flexibly, and can focus on compensating the gain flatness at an edge of a frequency band, obtaining good performance with less calculation amount.

Method for compensating gain flatness of transceiver

A computer-implemented method includes: obtaining, by an application client executing on a terminal, a display request; and controlling, based on the display request, a display screen of the terminal to simultaneously display a scanning region and a first identification code in an interface, in which the first identification code stores information corresponding to a user of the terminal, in which the scanning region displays a second identification code scanned by a camera of the terminal, and in which the second identification code is usable by the terminal to perform operations based on the second identification code.

Scanning interface display

Growing community of inventors

Hangzhou, China

Xin Wang