Back to results
US 12,761,319 B2Granted
Laser receiving system and laser ranging system
AssigneeSuteng Innovation Technology Co., Ltd.
InventorShen Jiang
Life of this patent
Estimating the term…
Abstract
This application provides a laser receiving system, which includes a receiver, a transimpedance amplification circuit, and at least one measurement circuit. The at least one measurement circuit includes a first measurement circuit, where the receiver is connected to a terminal of the transimpedance amplification circuit, and is configured to receive an echo laser beam and output an echo signal. The transimpedance amplification circuit has a terminal connected to the receiver and another terminal separately connected to each of the at least one measurement circuit, and is configured to perform transimpedance amplification on the echo signal. The first measurement circuit is configured to output a sampling signal after shaping the echo signal.
Claims8
A laser receiving system, comprising:
- a receiver, a transimpedance amplification circuit, and at least one measurement circuit, wherein the at least one measurement circuit comprises a first measurement circuit and a second measurement circuit, and wherein
- the receiver is connected to a terminal of the transimpedance amplification circuit, and is configured to receive an echo laser beam and output an echo signal;
- the transimpedance amplification circuit has a terminal connected to the receiver and another terminal separately connected to each of the at least one measurement circuit, and is configured to perform transimpedance amplification on the echo signal;
- the first measurement circuit comprises a first pulse shaping circuit and a first sampling module, the first pulse shaping circuit is configured to receive and then shape a transimpedance-amplified echo signal, and the first sampling module is configured to sample a shaped echo signal and output a sampling signal;
- and
- the second measurement circuit comprises a second pulse shaping circuit and a second sampling module, the second pulse shaping circuit is configured to receive and then shape a transimpedance-amplified echo signal, the second sampling module is configured to sample a shaped echo signal and output a sampling signal, and pulse width compression of the second pulse shaping circuit is lower than pulse width compression of the first pulse shaping circuit,
- wherein the first pulse shaping circuit comprises a second operational amplifier, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first capacitor, a second capacitor, and a second direct current voltage source, wherein:
- a non-inverting input terminal of the second operational amplifier is connected to a terminal of the third resistor and a terminal of the fourth resistor, another terminal of the third resistor is connected to the second direct current voltage source, and another terminal of the fourth resistor is grounded;
- an inverting input terminal of the second operational amplifier is connected to a terminal of the second resistor, a terminal of the first capacitor, and a terminal of the fifth resistor, and another terminal of the second resistor is connected to another terminal of the first capacitor, a terminal of the second capacitor, and the transimpedance amplification circuit;
- and
- an output terminal of the second operational amplifier is connected to another terminal of the fifth resistor, another terminal of the second capacitor, and the first sampling module.
8 more elements
A laser receiving system, comprising:
- a receiver, a transimpedance amplification circuit, and at least one measurement circuit, wherein the at least one measurement circuit comprises a first measurement circuit and a second measurement circuit, and wherein
- the receiver is connected to a terminal of the transimpedance amplification circuit, and is configured to receive an echo laser beam and output an echo signal;
- the transimpedance amplification circuit has a terminal connected to the receiver and another terminal separately connected to each of the at least one measurement circuit, and is configured to perform transimpedance amplification on the echo signal;
- the first measurement circuit comprises a first pulse shaping circuit and a first sampling module, the first pulse shaping circuit is configured to receive and then shape a transimpedance- amplified echo signal, and the first sampling module is configured to sample a shaped echo signal and output a sampling signal;
- and
- the second measurement circuit comprises a second pulse shaping circuit and a second sampling module, the second pulse shaping circuit is configured to receive and then shape a transimpedance-amplified echo signal, the second sampling module is configured to sample a shaped echo signal and output a sampling signal, and pulse width compression of the second pulse shaping circuit is lower than pulse width compression of the first pulse shaping circuit,
- wherein the first pulse shaping circuit comprises a second operational amplifier, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a first capacitor, a second capacitor, and a second direct current voltage source, wherein:
- a non-inverting input terminal of the second operational amplifier is connected to a terminal of the second resistor, a terminal of the first capacitor, a terminal of the third resistor, and a terminal of the fourth resistor, another terminal of the second resistor is connected to another terminal of the first capacitor and the transimpedance amplification circuit, another terminal of the third resistor is connected to the second direct current voltage source, and another terminal of the fourth resistor is grounded;
- an inverting input terminal of the second operational amplifier is connected to a terminal of the fifth resistor and a terminal of the second capacitor, another terminal of the second capacitor is connected to a terminal of the sixth resistor, and another terminal of the sixth resistor is grounded;
- and
- an output terminal of the second operational amplifier is connected to another terminal of the fifth resistor and the first sampling module.
8 more elements
Dependencies are inferred from the claim text.