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Radio frequency interference estimation device, signal processing device and signal processing method

A radio frequency interference and signal technology, used in transmission monitoring, electrical components, transmission systems, etc., can solve problems such as failure to converge, signal errors, etc.

Active Publication Date: 2022-03-25
REALTEK SEMICON CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] An object of the present invention is to provide a signal processing method, a related signal processing device and a radio frequency interference estimation device, so as to solve the above-mentioned problem that signal errors at the receiver end cannot converge

Method used

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  • Radio frequency interference estimation device, signal processing device and signal processing method
  • Radio frequency interference estimation device, signal processing device and signal processing method
  • Radio frequency interference estimation device, signal processing device and signal processing method

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Embodiment Construction

[0015] figure 1 It is an exemplary block diagram showing a signal processing apparatus according to an embodiment of the present invention. The signal processing device 100 can be applied to a communication device, eg, a receiver in a communication system, for processing a received signal R(n). The signal processing apparatus 100 may at least include a radio frequency interference canceller circuit 110 , a slicer 120 and a combiner 130 .

[0016] Notably, figure 1 It is a simplified schematic diagram of a signal processing apparatus, in which only the components related to the present invention are shown. Those skilled in the art can understand that a signal processing device, a receiver or a communication device should include other signal processing related components for processing the received signal. For example, the signal processing device, receiver or communication device should include one or more equalizer or filter circuits to compensate for channel effects in th...

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Abstract

A radio frequency interference estimating device is used to generate an estimated radio frequency interference signal, including a combiner, a first multiplier and a second multiplier. The combiner is used for combining a first digital signal and a second digital signal to generate an estimated radio frequency interference signal. The first multiplier is used for generating a first digital signal according to the same-phase signal and a first cosine signal. The second multiplier is used for generating a second digital signal according to a quadrature phase signal and a first sinusoidal signal. The first sine signal and the first cosine signal are generated according to a frequency, and the in-phase signal and the quadrature-phase signal are generated according to the frequency and one or more harmonic components of the frequency.

Description

technical field [0001] The present invention relates to a signal processing device used in a communication device, in particular to a signal processing device that can effectively eliminate radio frequency interference. Background technique [0002] In most communication systems, external or internal interference can cause errors in the transmitted signal, thereby limiting the performance of the communication system. For example, noise in the transmission channel or errors of components in the communication device may cause the voltage level of the transmission signal to deviate from its ideal voltage level (ie, the voltage level set by the transmitter). When the voltage level offset is too large, it will cause misjudgment at the receiving end and reduce the communication performance. [0003] In view of this, communication devices are usually equipped with related circuits / devices to eliminate unwanted interference. The interference cancellation circuit / device usually adj...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/10H04B17/345
CPCH04B1/1027H04B1/10H04B17/345
Inventor 苏季希黄亮维
Owner REALTEK SEMICON CORP
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