Title:
無線ＬＡＮにおけるレーダー検出
Document Type and Number:
Japanese Patent JP7204996
Kind Code:
B2
Abstract:
Disclosed are methods and systems for a WLAN device operating on DFS channels to calibrate the PRI as well as delays between partial pulses of received radar pulses that are impaired due to channel and filtering effects. The calibrated PRI may approximate the PRI of the transmitted pulses. The calibrated delay between the partial pulses estimates the interval between two partial pulses that originally belong to the same transmitted pulse. Using the calibrated PRI and the calibrated delay between partial pulses, the WLAN device may reconstruct the original pulses from received impaired pulses even when the impaired pulses are delayed and partial pulses of the original pulses. The WLAN device may use the calibrated results to correct the shortened PW and varying PRI of the impaired pulses to restore the partial pulses to their full PW with a relatively uniform PRI, increasing the probability of detecting the radar signals.
Inventors:
Chening Chen
Chun Yen Huang
Wen Tong Kuo
Chun Yen Huang
Wen Tong Kuo
Application Number:
JP2022516156A
Publication Date:
January 16, 2023
Filing Date:
August 27, 2020
Export Citation:
Assignee:
Cypress Semiconductor Corporation
International Classes:
G01S7/292; G01S7/36; H04B17/309; H04B17/382
Domestic Patent References:
| JP2005102165A | ||||
| JP2007049694A | ||||
| JP2007274659A | ||||
| JP2008005115A | ||||
| JP2008281517A |
Foreign References:
| US20180095160 | ||||
| US5291199 |
Attorney, Agent or Firm:
Einzel Felix-Reinhard
Taku Morita
Junichi Maekawa
Hideo Nagashima
Ueshima class
Taku Morita
Junichi Maekawa
Hideo Nagashima
Ueshima class