公开(公告)号：US20240113764A1

公开(公告)日：2024-04-04

申请号：US18319125

申请日：2023-05-17

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

发明人： Gwang Moon PARK

IPC分类号： H04B7/08 ,  H04B17/20 ,  H04B17/23

CPC分类号： H04B7/0854 ,  H04B17/23 ,  H04B17/25

摘要： A weak signal detection device for detecting a weak signal appearing intermittently with a level that is less than or equal to internal noise of a radio frequency (RF) receiving part may comprise: a cross-correlation spectrum processing part configured to generate a cross-correlation spectrum using a correlation between RF receiving channels; and a waveform combiner configured to generate an output spectrum having a spectrum persistent function by assigning weight values to a current waveform and a previous waveform of the cross-correlation spectrum.

公开(公告)号：US20240214084A1

公开(公告)日：2024-06-27

申请号：US18362063

申请日：2023-07-31

申请人： Rohde & Schwarz GmbH & Co. KG

发明人： Darren TIPTON ,  Johan NILSSON ,  Christian KUHN

IPC分类号： H04B17/20

CPC分类号： H04B17/25 ,  H04B17/201

摘要： The invention relates to a measurement system, including a signal analyzer or monitoring receiver, for measuring and analyzing modulated signals. The system includes a signal acquisition device having input port(s), wherein the signal acquisition device is configured to capture modulated signal(s) applied to the input ports, wherein each captured modulated signal can be represented as an I/Q signal; wherein the signal acquisition device generates at least two digital I/Q data streams based on the one or more modulated signals, wherein the at least two digital I/Q data streams are generated in parallel. The measurement system includes a selection device to select at least one target frequency bandwidth in each of the at least two digital I/Q data streams; and a signal processing device configured to analyze the at least two digital I/Q data streams in the selected target frequency bandwidths.

公开(公告)号：US12081280B2

公开(公告)日：2024-09-03

申请号：US18637424

申请日：2024-04-16

申请人： Zhejiang Ocean University

发明人： Kun Yang ,  Shefeng Yan ,  Xuyang Chen ,  Xianzhong Xu

IPC分类号： H04B17/20

CPC分类号： H04B17/25

摘要： A radio frequency high-speed switching control circuit comprises: a control module, outputting a control signal according to a preset algorithm; and a switching module, connected with the control module, and switching an input radio frequency signal to different radio frequency signal output ports for outputting according to the control signal output by the control module; wherein a plurality of toggle switch chips are provided in the switching module, and the toggle switch chips are electrically connected in a cascading manner. The advantages of the present disclosure lie in that through the design of a byte logic control circuit, toggle switches are cascaded to achieve that one input signal is switched to sixteen signal outputs (SPT16) and radio frequency signals within a frequency band range of 5 MHz to 6 GHz can be covered.

公开(公告)号：US20240267137A1

公开(公告)日：2024-08-08

申请号：US18637424

申请日：2024-04-16

申请人： Zhejiang Ocean University

发明人： Kun YANG ,  Shefeng YAN ,  Xuyang CHEN ,  Xianzhong XU

IPC分类号： H04B17/20

CPC分类号： H04B17/25

摘要： A radio frequency high-speed switching control circuit comprises: a control module, outputting a control signal according to a preset algorithm; and a switching module, connected with the control module, and switching an input radio frequency signal to different radio frequency signal output ports for outputting according to the control signal output by the control module; wherein a plurality of toggle switch chips are provided in the switching module, and the toggle switch chips are electrically connected in a cascading manner. The advantages of the present disclosure lie in that through the design of a byte logic control circuit, toggle switches are cascaded to achieve that one input signal is switched to sixteen signal outputs (SPT16) and radio frequency signals within a frequency band range of 5 MHz to 6 GHz can be covered.

公开(公告)号：US20230318721A1

公开(公告)日：2023-10-05

申请号：US18043977

申请日：2020-09-15

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： Miguel LOPEZ ,  Leif WILHELMSSON

IPC分类号： H04B17/20 ,  H04L43/06

CPC分类号： H04B17/25 ,  H04L43/06

摘要： An approach is provided for sensing changes in a physical environment, where a transmitter transmits a request for measurement of at least one symbol. The request includes an identifier and an indication of the at least one symbol. A signal comprising the at least one symbol, is transmitted, and a measurement report for the at least one symbol is received. A receiver receives a request for measurement of at least one symbol in which the request includes an identifier and an indication of the at least one symbol. A signal including the at least one symbolis received. Measurements are reported on the at least one symbol to provide a measurement report, and the measurement report is transmitted.