Method of exapanding dynamic range in radio systems

FIELD: physics, electronics.

SUBSTANCE: invention relates to electronic engineering and audio equipment, designed for expanding a dynamic range and can be used in audio equipment and radio systems for different purposes. Expansion of the dynamic range of equipment is achieved by including N blocks of operational amplifiers, having different gain coefficients, as well as a set of K1.N switches, which connect their own amplifier. When transmitting/recording a signal in random-access memory, they are connected so as to reduce the dynamic range of the recorded (or transmitted) signal. When processing (or receiving) a signal, a dynamic range expander also has N blocks of operational amplifiers, which are connected by K2.N switches, and restore the initial signal by connecting the corresponding blocks of amplifiers. Therefore when recording a signal, its dynamic range is reduced, and restored again when reproducing the signal, while preserving the initial dynamic range of the processed signal.

EFFECT: expansion of dynamic range of radio systems.

1 dwg

 



 

Same patents:

FIELD: radio engineering, communication.

SUBSTANCE: method of controlling attenuation in an oscillatory LC circuit is based on connecting an additional resistor ρ<<r to the circuit between the earth and an inductance coil, where r is the active resistance of the coil, and introducing special initial conditions for generation of controlled oscillations. External emf is introduced into the circuit, the value of which is equal to the voltage across the resistor amplified k times without inversion and periodisation of the launch modes and the initial position. The required nature of attenuation is established and observed by controlling the equivalent resistance of the circuit r*=r-ρ(k-1); if r*>0 the process is attenuating, if r*=0 the process is not attenuating and if r*<0 the process is rising.

EFFECT: establishing the required nature of attenuation in controlled oscillations.

2 cl, 1 dwg

The invention relates to electrical engineering and can be used to generate oscillations of a special form

FIELD: radio engineering, communication.

SUBSTANCE: method of controlling attenuation in an oscillatory LC circuit is based on connecting an additional resistor ρ<<r to the circuit between the earth and an inductance coil, where r is the active resistance of the coil, and introducing special initial conditions for generation of controlled oscillations. External emf is introduced into the circuit, the value of which is equal to the voltage across the resistor amplified k times without inversion and periodisation of the launch modes and the initial position. The required nature of attenuation is established and observed by controlling the equivalent resistance of the circuit r*=r-ρ(k-1); if r*>0 the process is attenuating, if r*=0 the process is not attenuating and if r*<0 the process is rising.

EFFECT: establishing the required nature of attenuation in controlled oscillations.

2 cl, 1 dwg

FIELD: physics, electronics.

SUBSTANCE: invention relates to electronic engineering and audio equipment, designed for expanding a dynamic range and can be used in audio equipment and radio systems for different purposes. Expansion of the dynamic range of equipment is achieved by including N blocks of operational amplifiers, having different gain coefficients, as well as a set of K1.N switches, which connect their own amplifier. When transmitting/recording a signal in random-access memory, they are connected so as to reduce the dynamic range of the recorded (or transmitted) signal. When processing (or receiving) a signal, a dynamic range expander also has N blocks of operational amplifiers, which are connected by K2.N switches, and restore the initial signal by connecting the corresponding blocks of amplifiers. Therefore when recording a signal, its dynamic range is reduced, and restored again when reproducing the signal, while preserving the initial dynamic range of the processed signal.

EFFECT: expansion of dynamic range of radio systems.

1 dwg

FIELD: electricity.

SUBSTANCE: high-power microwave impulses generator in the radar transmitters with grid control devices includes an impulse shaper (1), an exciter (2), a microwave impulse amplifier (3), a matching valve (4), a control unit (5), a modulator driver (6 ), a modulator (7), a microwave unit (8).

EFFECT: improved shape of the microwave impulses, when excluding the influence of the stray modulator parameters on them, which is considerably simplified due to this, that is achieved by separating circuits, supplied to the microwave device input, and the grid control circuit, so that the amplified impulse is supplied to the pre-opened device input.

5 dwg

Up!