Method for amplitude-limited wide-band radio signal and relative transmitter
A broadband signal and transmitter technology, which is applied in the direction of radio/inductive link selection arrangement, limiting amplitude, adding and generating signals, etc., to achieve the effects of increasing system capacity, reducing costs, and increasing output power
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[0026] According to the present invention, the proposed limiting module eliminates signal overflow above a predetermined threshold, that is, it generates filter pulses that are in phase with the limited signal. Each filter pulse corresponds to an overflow, and the amplitude of each filter pulse is dependent on The magnitude of the corresponding overflow.
[0027] -Figure 1 shows an embodiment of the limiting module according to the invention. The limiting module 10 includes a signal envelope detector 11, an overflow detector 12, an overflow selector 13, a pulse sequence generator 14, a low-pass filter 15 and a subtractor 16. The limiter module receives the baseband signal as input, and the baseband signal is composed of the in-phase part input I and the quadrature part input Q. Preferably, the baseband signal is represented in digital form so that the limiting module 10 performs digital processing.
[0028] The in-phase input I and the quadrature input Q part of the signal are con...
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