Estimation device and method for non-linear distortion and receiver
A nonlinear distortion and nonlinear technology, which is applied in the field of nonlinear distortion estimation devices, can solve the problems of nonlinear damage aggravation, signal spectral density increase, power budget and negative impact of transmission distance, etc., and achieves good universality, high precision effect
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Embodiment 1
[0048] An embodiment of the present invention provides a nonlinear distortion estimation method. figure 2 is a schematic flow chart of the estimation method of the embodiment of the present invention, such as figure 2 As shown, the estimation method includes:
[0049] Step 201, sampling the band-limited analog signal to obtain a sampling sequence;
[0050] Step 202, calculating the nonlinear perturbation coefficient in the nonlinear distortion estimation based on the Nyquist pulse;
[0051] Step 203, using the nonlinear perturbation coefficient and the sampling sequence to calculate a nonlinear perturbation term superimposed on the signal; and
[0052] Step 204, using the nonlinear perturbation term to calculate the nonlinear distortion waveform.
[0053] In this embodiment, the nonlinear estimation model of an arbitrary band-limited signal takes sampled values of signal waveforms and link parameters as inputs, and outputs nonlinearly distorted waveforms. It is worth n...
Embodiment 2
[0133] An embodiment of the present invention provides a device for estimating nonlinear distortion, which corresponds to the method for estimating nonlinear distortion in Embodiment 1, and the same content will not be repeated here.
[0134] Image 6 is a schematic diagram of the structure of the estimation device of the embodiment of the present invention, such as Image 6 As shown, the estimation device 600 includes: a signal sampling unit 601, a coefficient calculation unit 602, a perturbation item calculation unit 603, and a waveform estimation unit 604;
[0135] Among them, the signal sampling unit 601 samples the band-limited analog signal to obtain a sampling sequence; the coefficient calculation unit 602 calculates the nonlinear perturbation coefficient in the nonlinear distortion estimation based on the Nyquist pulse; the perturbation item calculation unit 603 uses the The nonlinear perturbation coefficient and the sampling sequence are used to calculate a nonlinear...
Embodiment 3
[0144] An embodiment of the present invention provides a receiver, and the electronic device includes the estimating apparatus 600 as described in Embodiment 2.
[0145] Figure 8 It is a schematic structural diagram of a receiver according to an embodiment of the present invention. like Figure 8 As shown, the receiver 800 may include: a central processing unit (CPU) 200 and a memory 210 ; the memory 210 is coupled to the central processing unit 200 . Among them, the memory 210 can store various data; in addition, it also stores information processing programs, and executes the programs under the control of the central processing unit 200 .
[0146] In one embodiment, the functions of the estimation device 600 can be integrated into the central processing unit 200 . Wherein, the central processing unit 200 may be configured to implement the estimation method as described in Embodiment 1.
[0147] In another embodiment, the estimating device 600 can be configured separatel...
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