Unlock instant, AI-driven research and patent intelligence for your innovation.

Noise Reduction in Radar Systems

A radar signal and noise technology, used in radio wave measurement systems, radio wave reflection/re-radiation, instruments, etc., can solve problems such as reducing the sensitivity of radar systems and high noise

Active Publication Date: 2022-05-03
TEXAS INSTR INC
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, radar systems using integrated circuits based on CMOS technology often include a high amount of noise which reduces the sensitivity of such radar systems

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Noise Reduction in Radar Systems
  • Noise Reduction in Radar Systems
  • Noise Reduction in Radar Systems

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] A system can be a subsystem of another system. If a first device couples to a second device, that connection may be through a direct electrical connection or through an indirect electrical connection via other devices and connections. The term "calibration" may include the meaning of the word "test". The term "input" may mean the source or drain (or even a control input, gate as the context dictates) of a PMOS (P-type metal oxide semiconductor) or NMOS (N-type metal oxide semiconductor) transistor. The term "pulse" may mean a portion of a waveform, such as a periodic waveform. The term "transceiver" includes a transmitter and a receiver, where the transmitter and receiver are operable independently of each other (e.g., both can be turned on, either can be turned on, and both can be turned on during operation of a system that includes the transceiver). can be turned off).

[0014] figure 1 An illustrative computing system 100 is shown in accordance with certain embod...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

In the depicted example, a noise-reduced continuous wave FM radar (200) includes a transmitter (202) for generating a radar signal, for receiving a reflected radar signal (232), and including a A radar signal (232) and a receiver (204) of a mixer (262, 263) that generates a baseband signal in response to a local oscillator (LO) (210) signal and coupled to a transmitter (202), receiver (204 ) and a signal shifter (212, 299, 284, 288) of at least one of the baseband signals generated by the mixer (262, 263). Signal shifters (212, 299, 284, 288) are configured to reduce interference with interference (such as strong reflections from nearby objects and Electromagnetic coupling) associated amplitude noise or phase noise on the detection of other surrounding objects.

Description

Background technique [0001] Radar systems rely on signal analysis to detect the presence of information in received radar signals. The ability to detect this information is diminished by the presence of noise in the received radar signal. This noise includes amplitude and phase noise introduced by the radar's transmitter into the transmitted radar wave and amplitude and phase noise introduced into the mixer of the radar's receiver. Integrated circuits (eg, fabricated using complementary metal-oxide-semiconductor "CMOS" technology) are used to increase the functionality and portability of many radar systems. However, radar systems using integrated circuits based on CMOS technology often include a high amount of noise, which reduces the sensitivity of such radar systems. Contents of the invention [0002] In the depicted example, a noise-reduced continuous-wave frequency-modulated (CWFM) radar includes a receiver for receiving reflected radar signals and a receiver for recei...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/536
CPCG01S7/038G01S7/354G01S13/003G01S13/04G01S13/343G01S13/88G01S7/023G01S7/358G01S7/356G01S7/292G01S7/414
Inventor K·苏布拉吉K·拉玛苏布拉马尼安S·穆拉利S·萨玛拉K·丹杜
Owner TEXAS INSTR INC