Nec corporation (20240121007). COMMUNICATION SYSTEM, RECEIVER, COMPENSATION AMOUNT CALCULATION APPARATUS, DISTORTION COMPENSATION METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM simplified abstract
Contents
- 1 COMMUNICATION SYSTEM, RECEIVER, COMPENSATION AMOUNT CALCULATION APPARATUS, DISTORTION COMPENSATION METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM
- 1.1 Organization Name
- 1.2 Inventor(s)
- 1.3 COMMUNICATION SYSTEM, RECEIVER, COMPENSATION AMOUNT CALCULATION APPARATUS, DISTORTION COMPENSATION METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM - A simplified explanation of the abstract
- 1.4 Simplified Explanation
- 1.5 Potential Applications
- 1.6 Problems Solved
- 1.7 Benefits
- 1.8 Potential Commercial Applications
- 1.9 Possible Prior Art
- 1.10 Original Abstract Submitted
COMMUNICATION SYSTEM, RECEIVER, COMPENSATION AMOUNT CALCULATION APPARATUS, DISTORTION COMPENSATION METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM
Organization Name
Inventor(s)
COMMUNICATION SYSTEM, RECEIVER, COMPENSATION AMOUNT CALCULATION APPARATUS, DISTORTION COMPENSATION METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240121007 titled 'COMMUNICATION SYSTEM, RECEIVER, COMPENSATION AMOUNT CALCULATION APPARATUS, DISTORTION COMPENSATION METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM
Simplified Explanation
The patent application describes a distortion compensation filter with adaptively controlled filter coefficients to compensate for distortion in a reception signal obtained through coherent reception of a transmitted signal. The filter includes a group delay ripple calculation device to calculate the group delay in the reception signal and determine group delay ripple, which is used to calculate a phase response. This phase response is then fed back to filters with phase compensation functions before an adaptive equalization filter in the receiver to partially compensate for the group delay ripple.
- Distortion compensation filter with adaptively controlled filter coefficients
- Group delay ripple calculation device to calculate group delay in reception signal
- Feedback calculation unit to calculate phase response based on group delay ripple
- Phase response fed back to filters with phase compensation functions for compensation
Potential Applications
The technology can be applied in:
- Telecommunications
- Radar systems
- Satellite communications
Problems Solved
The technology addresses issues such as:
- Distortion in reception signals
- Group delay ripple
- Phase response variations
Benefits
The benefits of this technology include:
- Improved signal quality
- Enhanced reception performance
- Reduction of distortion effects
Potential Commercial Applications
Potential commercial applications of this technology include:
- Communication equipment manufacturers
- Radar system developers
- Telecommunication service providers
Possible Prior Art
One possible prior art for this technology could be:
- Adaptive equalization filters in communication systems
Unanswered Questions
How does the adaptively controlled filter coefficients improve distortion compensation?
The adaptively controlled filter coefficients allow for real-time adjustments based on the reception signal, leading to more accurate compensation for distortion.
What are the specific parameters used to calculate the group delay ripple?
The specific parameters used to calculate the group delay ripple include the filter coefficient of the distortion compensation filter and the group delay in the reception signal.
Original Abstract Submitted
a distortion compensation filter whose filter coefficient is adaptively controlled compensates for a distortion included in a reception signal obtained by performing coherent reception of a signal transmitted from a transmitter in a receiver. a group delay ripple calculation device calculates a group delay included in the reception signal based on a filter coefficient of a distortion compensation filter and calculates group delay ripple from the calculated group delay. the feedback calculation unit calculates a phase response based on the calculated group delay ripple. the feedback calculation unit feeds the calculated phase response back to one or more filters having a phase compensation function disposed in a stage before an adaptive equalization filter included in the receiver, and causes one or more filters to at least partially compensate for the group delay ripple.
