Marvell International Limited

Calterah Semiconductor Technology (shanghai) Co., Ltd

Calterah Semiconductor Technology (shanghai) Technology Co., Ltd.

Yan Zhu

Jun Zhu

Zhihua Chen

Wenting Zhou

Jiashu Chen

Yanqun Zhang

Leilei Huang

The radar signal processing method includes: after an echo signal is mixed based on a local oscillator signal, and digital signal processing is performed to obtain a signal to be processed, the signal to be processed is subtracted based on a datum difference frequency signal to obtain a target signal, and a travelling speed of a target relative to a radar and/or a distance of the target relative to the radar is determined according to the target signal. Since the datum differential frequency signal is a signal obtained by mixing a leakage signal based on the local oscillator signal and performing the digital signal processing in a target free environment. Therefore, subtracting the signal to be processed based on the datum differential frequency signal can effectively reduce the content of the leakage signal in the signal to be processed, thereby improving the accuracy of the measurement results.

Radar signal processing method, radar signal processing device, radio signal processing method, integrated circuit, radio device, and device

A radar system and control method thereof is disclosed. The radar system comprises a plurality of radar units, each comprising: one or more radio frequency (RF) channels configured to receive a reflected signal and then generate an analog input signal according to the reflected signal; and a processing module connected with all the RF channels and configured to sample the analog input signal to obtain a digital signal and perform the first digital signal processing on the digital signal to obtain intermediate data, wherein when the plurality of radar units work jointly, a designated radar unit performs the second digital signal processing on the plurality of intermediate data provided by the plurality of radar units, thereby obtaining result data of the radar system.

Radar system and control method therefor

An automatic gain control method, sensor (), and radio device (); by means of using the saturation information of a test echo unit to adjust the gain coefficient of a transmitting and receiving link, it is ensured that the received signal power used for target detection is located within a rated threshold range, further improving the accuracy of sensor () target detection, and avoiding defects such as missed detection, false detection, and even blindness.

Automatic gain control method, sensor, and radio device

A system for performing a scatter-gather data transfer operation. The system includes a shifter configured to selectively receive, based on a selection signal, one of first data input to the system and second data input to the system prior to the first data being input to the system, perform, based on a shift signal, a shift operation on the one of the first data and the second data received by the shifter, and output first shifted data resulting from the shift operation. A controller is configured to receive a first indication of a start byte location of the first data input to the system, receive a second indication of a length of the first data input to the system, and output, based on the first indication and the second indication, the shift signal. The shift signal indicates to the shifter when to perform the shift operation.

Systems and methods for performing a scatter-gather data transfer operation

Data packers having corresponding methods and tangible computer-readable media comprise: a controller configured to receive output information, wherein the output information specifies an output alignment; a first multiplexer configured to pass one of data received into the data packer, and data stored in a register of the data packer; a rotate shifter configured to rotate-shift, in accordance with the output alignment, data passed by the first multiplexer; a second multiplexer configured to pass at least one of the data output by the rotate shifter, and the data stored in the register.

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Shanghai, China

Yan Zhu