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Receiver with programmable gain for uwb radar

A technology of programming gain and receiver, which is applied in the direction of instruments, liquid level indicators, and using re-radiation, etc., can solve the problem of shortening the measurement distance, and achieve the effect of SNR reduction, measurement range and level accuracy degradation

Active Publication Date: 2019-12-17
HONEYWELL INT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, compared to more complex signal-based radars including the more expensive and complex Frequency Modulated Continuous Wave (FMCW; which uses a continuous (linear) frequency sweep over time and Stepped Frequency Continuous Wave (SFCW; or Frequency Hopping) radar ratio, limited dynamic range, measurement range and / or accuracy are disadvantages of pulsed radars including UWB radars
For UWB radar, ultra-short pulse width enables measurement accuracy, but reduces measurement distance due to attenuation of low pulse power

Method used

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  • Receiver with programmable gain for uwb radar
  • Receiver with programmable gain for uwb radar
  • Receiver with programmable gain for uwb radar

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Embodiment Construction

[0016] The disclosed embodiments are described with reference to the drawings, wherein like reference numerals are used throughout the figures to designate like or equivalent elements. The figures are not drawn to scale and they are provided merely to illustrate certain disclosed aspects. Several disclosed aspects are described below with reference to example applications for illustration. It should be understood that numerous specific details, relationships, and methods are set forth to provide a thorough understanding of the disclosed embodiments.

[0017] One of ordinary skill in the relevant art will readily recognize, however, that the subject matter disclosed herein may be practiced without one or more of the specific details or with other methods. In other instances, well-known structures or operations have not been shown in detail to avoid obscuring certain aspects. The disclosure is not limited by the illustrated order of acts or events, as some acts may occur in di...

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Abstract

A receiver for an ultra-wideband (UWB) pulsed radar system (100) includes a programmable gain network (PGN) block (135) coupled to process received UWB radar signals. The programmable PGN block includes: a programmable attenuator (115) with an output coupled to the input node of the UWB low noise amplifier (LNA) (105); and a fast-acting power limiter (110) at the input node and Between system ground and / or power nodes for radar systems. A sampling unit (120) is coupled between the output of the LNA and the processor (140). The processor implements an attenuation algorithm, where the processor is coupled to the programmable attenuator and provides an attenuation control signal to dynamically control the gain or attenuation of the programmable attenuator, such as based on the distance from the transmit antenna (175) to the product material.

Description

technical field [0001] The disclosed embodiments relate to systems and methods for determining the level of product in a storage tank by using ultra-wideband (UWB) radar signals transmitted to a product surface and analyzing the radar signals reflected from the product surface. Background technique [0002] Standard practice is to use large metal storage tanks for storing a wide variety of liquids, such as beverages and petroleum products. Traditional large storage tanks are usually made of non-stainless steel plates, and in the case of petroleum products tanks are usually made of 1 / 4" (0.63cm) to 1 / 2" (1.27cm) thick steel plates welded together . Traditional large storage tanks typically range in size from hundreds of feet high (100 feet = 30.5 meters) to hundreds of feet in diameter. [0003] Non-contact electromagnetic detection and sensing can be used to determine the presence or characteristics of an object (object classification or shape), or liquid level, or distanc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/03G01S13/76
CPCG01S7/2921G01S7/34G01F23/284G01S13/0209G01S7/038G01S13/88G01S7/529G01S7/52033
Inventor B.赛
Owner HONEYWELL INT INC