CN111130648B - Optical communication signal receiving method, signal receiving device and electronic equipment - Google Patents
Optical communication signal receiving method, signal receiving device and electronic equipment Download PDFInfo
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- CN111130648B CN111130648B CN201911419479.1A CN201911419479A CN111130648B CN 111130648 B CN111130648 B CN 111130648B CN 201911419479 A CN201911419479 A CN 201911419479A CN 111130648 B CN111130648 B CN 111130648B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/67—Optical arrangements in the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/69—Electrical arrangements in the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/0016—Arrangements for synchronising receiver with transmitter correction of synchronization errors
- H04L7/0033—Correction by delay
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/0075—Arrangements for synchronising receiver with transmitter with photonic or optical means
Abstract
The invention provides an optical communication signal receiving method, a signal receiving device and electronic equipment, relates to the field of information processing, and solves the problem in the process of converting a high-speed serial signal into a low-speed parallel signal for receiving. The optical communication signal receiving method of the present invention is applied to a signal receiving apparatus having an analog-to-digital conversion circuit and a first synchronization circuit; the optical communication signal receiving method includes: the analog-to-digital conversion circuit performs analog-to-digital conversion on the same optical communication analog signal at different moments to obtain at least two optical communication digital signals; the first synchronization circuit performs a first time synchronization of at least two optical communication digital signals.
Description
Technical Field
The present invention relates to the field of information processing, and in particular, to an optical communication signal receiving method, a signal receiving apparatus, and an electronic device.
Background
The fifth generation mobile communication technology (5th generation mobile networks, abbreviated as 5G) is an effective way for our country to control the nerves of network fates and improve the national comprehensive competitiveness.
Existing 5G backbones need to provide data connections of 10GB-100GB and even higher to meet the requirements of high data rates, low cost and large scale device connections. Optical communication becomes the first choice for high-speed communication transmission of the 5G backbone network at a high-speed transmission rate. Receiving a high-speed optical communication signal as an electrical signal and providing the signal to a user is a key of 5G high-speed optical communication. Due to the fact that the transmission rate of the 5G high-speed optical communication signal is high, the problem of conversion of a high-speed serial signal into a low-speed parallel signal for receiving exists at present.
Disclosure of Invention
The invention provides an optical communication signal receiving method, which aims to solve the problem existing in the existing receiving process of converting a high-speed serial signal into a low-speed parallel signal.
To achieve the above object, the present invention provides an optical communication signal receiving method. The optical communication signal receiving method is applied to a signal receiving device with at least two analog-to-digital conversion circuits and a first synchronization circuit; the optical communication signal receiving method includes: the at least two analog-to-digital conversion circuits perform analog-to-digital conversion on the same optical communication analog signal at different moments to obtain at least two optical communication digital signals; the first synchronization circuit performs a first time synchronization of at least two optical communication digital signals.
Preferably, the signal receiving apparatus further includes: a delay circuit; before the at least two analog-to-digital conversion circuits perform analog-to-digital conversion on the same optical communication analog signal at different moments to obtain at least two optical communication digital signals, the optical communication signal receiving method further comprises the following steps: the delay circuit delays the same optical communication analog signal under the triggering of at least two delay clocks to obtain at least two optical communication analog signals; the at least two delayed clocks are out of phase.
Preferably, at least two of the delayed clock frequencies are the same, the delayed clock frequencies being greater than 10 GHz.
Preferably, the delay circuit comprises a delay trigger sub-circuit and at least two first memory modules; the delay triggering sub-circuit provides at least two delay clocks to at least two first storage modules in a one-to-one correspondence manner; and the at least two first storage modules correspondingly send optical communication analog signals to the analog-to-digital conversion circuit under the triggering of the at least two delay clocks.
Preferably, each of the at least two analog-to-digital conversion circuits performs analog-to-digital conversion on the same optical communication analog signal at different time instants, and obtaining at least two optical communication digital signals includes: each of the at least two analog-to-digital conversion circuits converts at least the same optical communication analog signal into at least two optical communication discrete signals at different times; each of the at least two analog-to-digital conversion circuits encodes at least two optical communication discrete signals to obtain at least two optical communication digital signals.
Preferably, the signal receiving apparatus further includes: a second synchronization circuit; after the first synchronization circuit performs time synchronization on at least two optical communication digital signals for the first time, the optical communication signal receiving method further includes: the second synchronization circuit performs a second time synchronization of the at least two optical communication digital signals.
Compared with the prior art, in the optical communication signal receiving method provided by the invention, the transmission speed of the optical communication analog signal is extremely high, so that the at least two analog-to-digital conversion circuits are utilized to perform analog-to-digital conversion on the same optical communication analog signal at different moments, and the information contained in the rapidly transmitted optical communication analog signal can be ensured to be accurately and digitally collected. Meanwhile, the first synchronization circuit is used for carrying out first time synchronization on at least two optical communication digital signals, information of the optical communication digital signals converted by each analog-to-digital conversion circuit can be integrated, and the information contained in the optical communication analog signals can be accurately reflected while the obtained optical communication digital signals are parallelized. Therefore, the optical communication signal receiving method provided by the invention can convert the high-speed optical communication analog signal into the low-speed optical communication parallel digital signal under the condition of ensuring the complete information.
The invention also provides a signal receiving device. The signal receiving apparatus includes: the optical communication analog signal processing circuit comprises at least two analog-to-digital conversion circuits, a first optical communication analog signal processing circuit and a second optical communication analog signal processing circuit, wherein the at least two analog-to-digital conversion circuits are used for performing analog-to-digital conversion on the same optical communication analog signal at different moments to obtain at least two optical communication digital signals; and the first synchronization circuit is electrically connected with the analog-to-digital conversion circuit and is used for carrying out first time synchronization on at least two optical communication digital signals.
Preferably, the signal receiving apparatus further includes: the delay circuit is electrically connected with the analog-to-digital conversion circuit, at least two analog-to-digital conversion circuits of the analog-to-digital conversion circuit perform analog-to-digital conversion on the same optical communication analog signal at different moments to obtain at least two optical communication digital signals, and the delay circuit is used for delaying the optical communication analog signal under the triggering of at least two delay clocks to obtain at least two optical communication analog signals; the at least two delayed clocks are out of phase.
Preferably, at least two of the delayed clock frequencies are the same, the delayed clock frequencies being greater than 10 GHz.
Preferably, the delay circuit comprises: the delay triggering sub-circuit is electrically connected with the at least two first storage modules, the at least two first storage modules are electrically connected with the analog-to-digital conversion circuit, and the delay triggering sub-circuit is used for providing at least two delay clocks for the first storage modules; the delay triggering sub-circuit is used for providing at least two delay clocks to the at least two first storage modules in a one-to-one correspondence manner; the at least two first storage modules are used for sending optical communication analog signals to the analog-to-digital conversion circuit in a one-to-one correspondence mode under the triggering of the at least two delay clocks.
Preferably, each analog-to-digital conversion circuit includes: at least two analog-to-digital conversion sub-circuits, each analog-to-digital conversion sub-circuit comprising an encoder and a plurality of comparators; a plurality of comparators for converting the same optical communication analog signal into at least two optical communication discrete signals; an encoder electrically connected to the plurality of comparators and the first synchronization circuit for converting the at least two discrete optical communication signals into an optical communication digital signal.
Preferably, the signal receiving apparatus further includes: and the second synchronization circuit is electrically connected with the first synchronization circuit and is used for carrying out second time synchronization on the at least two optical communication digital signals.
Compared with the prior art, the beneficial effects of the signal receiving device provided by the invention are the same as those of the optical communication signal receiving method, and are not repeated herein.
The invention also provides electronic equipment. The electronic equipment comprises the signal receiving device.
Compared with the prior art, the electronic equipment provided by the invention has the same beneficial effects as the optical communication signal receiving method, and is not repeated herein.
Drawings
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present invention;
fig. 2 is a flowchart of an optical communication signal receiving method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a signal receiving apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an analog-to-digital conversion circuit according to an embodiment of the present invention.
Reference numerals:
11. the device comprises a signal receiving device, 12, a processor, 13 and a memory; 111. the circuit comprises an analog-to-digital conversion circuit, 112, a first synchronization circuit, 113, a delay circuit, 114 and a second synchronization circuit.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The "plurality" mentioned in the present embodiment means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a is present alone, A and B are present simultaneously, and B is present alone. The terms "exemplary" or "such as" are used herein to mean serving as an example, instance, or illustration, and are intended to present concepts in a concrete fashion, and should not be construed as preferred or advantageous over other embodiments or designs.
The embodiment of the invention provides an optical communication signal receiving method. The optical communication signal receiving method can be applied to electronic equipment. It should be understood that the electronic device may be a desktop computer, a laptop computer, a server, etc.
Fig. 1 shows a schematic structural diagram of an electronic device provided in an embodiment of the present invention. As shown in fig. 1, the electronic device includes a signal receiving apparatus 11. Of course in some cases also a processor 12, a memory 13 and a bus. The signal receiving device 11, the processor 12 and the memory 13 communicate with each other through a bus at this time.
The processor 12 according to the embodiment of the present invention may be a single processor or may be a general term for multiple processing elements. For example, the processor 12 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement embodiments of the present invention, such as: one or more microprocessors (digital signal processors, DSP for short), or one or more Field programmable gate arrays (FPGA for short).
The memory 13 according to the embodiment of the present invention may be a storage device, or may be a general term for a plurality of storage elements, and is used to store executable program codes and the like. And the memory 13 may include a Random Access Memory (RAM) or a non-volatile memory (non-volatile memory), such as a magnetic disk memory, a Flash memory (Flash), etc.
The bus described in the embodiment of the present invention may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc.
The signal receiving device 11 according to the embodiment of the present invention may be a communication interface, and may also be a signal receiver, configured to receive a communication signal.
For 5G communication, optical communication signals with high transmission rate are the first choice for high-speed communication transmission of 5G backbone network. However, since the transmission rate of the optical communication signal is high, there is a problem in how to receive the optical communication signal.
In view of this, referring to fig. 2, an optical communication signal receiving method provided by an embodiment of the present invention is applied to a signal receiving apparatus 11 having at least two analog-to-digital conversion circuits 111 and a first synchronization circuit 112, and includes the steps of:
s101: at least two analog-to-digital conversion circuits 111 perform analog-to-digital conversion on the same optical communication analog signal at different times to obtain at least two optical communication digital signals.
Converting the same optical communication analog signal into an optical communication digital signal at least two times respectively means converting the same optical communication analog signal at different times, for example: and intercepting the optical communication analog signal within a certain time range of 10 picoseconds, and converting the optical communication analog signal at different moments respectively.
In practical applications, analog-to-digital conversion can be performed on the same optical communication analog signal at 8 different times, for example: analog-to-digital conversion was performed at 0, 36 picoseconds, 36 × 2 picoseconds, 36 × 3 picoseconds, 36 × 4 picoseconds, 36 × 5 picoseconds, 36 × 6 picoseconds, and 36 × 7 picoseconds, respectively, of the optical communication analog signal. It should be understood that the conversion of the analog optical communication signal at different times can be selected according to actual needs to adjust the time interval between the two times.
S102: the first synchronization circuit 112 time-synchronizes at least two optical communication digital signals for a first time.
Because at least two optical communication digital signals have a certain phase difference, in order to ensure that the at least two optical communication digital signals are synchronously output, a synchronous circuit is adopted to realize the synchronization of the two optical communication digital signals.
Based on the optical communication signal receiving method, in the optical communication signal receiving method provided by the embodiment of the present invention, the transmission speed of the optical communication analog signal is particularly fast, so that different analog-to-digital conversion circuits 111 are used to perform analog-to-digital conversion on the same optical communication analog signal at different times, and it can be ensured that information contained in the optical communication analog signal which is fast transmitted can be accurately and digitally acquired. Meanwhile, the first synchronization circuit 112 is used to perform the first time synchronization on at least two optical communication digital signals, so that the information of the optical communication digital signals converted by the analog-to-digital conversion circuits 111 can be integrated, and the information contained in the optical communication analog signals can be accurately reflected while the obtained optical communication digital signals are parallelized. Therefore, the optical communication signal receiving method provided by the embodiment of the invention can convert the high-speed optical communication analog signal into the low-speed optical communication parallel digital signal under the condition of ensuring the complete information.
As a possible implementation manner, the signal receiving apparatus 11 further includes: a delay circuit 113. The kind of the delay circuit 113 can be selected according to actual needs, and is not limited herein.
Before the at least two analog-to-digital conversion circuits 111 perform analog-to-digital conversion on the same optical communication analog signal at different times to obtain at least two optical communication digital signals, the optical communication signal receiving method further includes:
s100: the delay circuit 113 delays the same optical communication analog signal under the triggering of at least two delay clocks to obtain at least two optical communication analog signals; the at least two delayed clocks are out of phase. Because the phases of at least two delay clocks are different, the same optical communication analog signal can be converted into at least two optical communication analog signals with a certain phase difference.
The delay circuit 113 described above may be defined as a first delay circuit. It should be understood that a single delay circuit 113 may be used to generate a plurality of delay clock signals to delay the same optical communication analog signal, or a plurality of delay circuits 113 may be used to generate a plurality of delay clocks in a one-to-one correspondence to delay the same optical communication analog signal. The same optical communication analog signal is converted into a time difference in the optical communication digital signal at least two moments, respectively, and the phase difference of at least two delay clocks is the same.
It should be noted that the synchronization circuit includes at least two delay circuits. The delay circuit at this time is defined as a second delay circuit. The analog-to-digital conversion circuit is electrically connected with the at least two second delay circuits, so that the at least two delay circuits correspondingly delay the at least two optical communication digital signals one by one.
From the above, for the same optical communication analog signal, the optical communication analog signal performs digitization and synchronization of the signal through at least two signal receiving chains. The processing flow of each signal receiving chain to the optical communication analog signal can be summarized as first time delay, analog-to-digital conversion and second time delay. And the sum of the first time delay time and the second time delay time in each signal receiving chain is the same. For example: the first time delay time of the first signal receiving chain is 0 picosecond, and the second time delay time of the first signal receiving chain is 36 × 7 picoseconds; the first time delay time of the second signal receiving chain is 36 picoseconds, and the second time delay time of the second signal receiving chain is 36 x 6 picoseconds; the first time delay time of the third signal receiving chain is 36 × 2 picoseconds, and the second time delay time of the third signal receiving chain is 36 × 5 picoseconds; the first time delay time of the fourth signal receiving chain is 36 × 3 picoseconds, and the second time delay time of the fourth signal receiving chain is 36 × 4 picoseconds; the first time delay time of the fifth signal receiving chain is 36 × 4 picoseconds, and the second time delay time of the fifth signal receiving chain is 36 × 3 picoseconds; the first time delay time of the sixth signal receiving chain is 36 × 5 picoseconds, and the second time delay time of the sixth signal receiving chain is 36 × 2 picoseconds; the first time delay time of the seventh signal receiving chain is 36 × 6 picoseconds, and the second time delay time of the seventh signal receiving chain is 36 picoseconds; the first delay time of the eighth signal receiving chain is 36 × 7 picoseconds, and the second delay time is 0 picosecond.
It should be noted that the delay clocks have different phases, so as to sample the same optical communication analog signal at different times. That is, the frequencies of the delay clocks may be the same or different. When the frequencies of the delayed clocks are the same. The frequency of the delayed clock is greater than 10 GHz. For example: when the same optical communication analog signal is sampled at the above-mentioned time, the sampling frequency of the delay clock is 27.7 ghz.
Illustratively, the signal receiving apparatus 11 further includes: at least two first storage modules; the first storage module may be a latch, or may be other storage media with a storage function.
Before the analog-to-digital conversion circuit 111 converts the same optical communication analog signal into an optical communication digital signal at least two moments to obtain at least two optical communication digital signals, the optical communication signal receiving method further includes: at least two first storage modules store the same optical communication analog signal.
As a possible implementation manner, the analog-to-digital converting circuit 111 performs analog-to-digital conversion on the same optical communication analog signal at different time instants to obtain at least two optical communication digital signals, including:
each of the at least two analog-to-digital conversion circuits 111 converts the optical communication analog signal into at least two optical communication discrete signals at different times; each of the at least two analog-to-digital conversion circuits 111 encodes at least two optical communication discrete signals to obtain at least two optical communication digital signals.
Illustratively, as shown in fig. 4, the analog-to-digital conversion circuit 111 includes an encoder 1112 and at least two comparators 1111. At this time, each comparator may compare the optical communication analog signal with a reference level of the comparator and output a comparison result. The comparison results output by the at least two comparators present discretization distribution, so that the at least two comparators convert the at least two optical communication analog signals into at least two optical communication discrete signals in one-to-one correspondence at least two moments. For example: when the level value of the optical communication analog signal is greater than the reference level of the comparator, the comparator outputs a high level potential; when the level value of the optical communication analog signal is smaller than the reference level of the comparator, the output is a low level potential.
It should be noted that the encoder and the comparators are included. A multi-stage comparator for comparing the input signal with a reference level of 1/N, 2/N, 3/N, …, (N-1)/N times, thereby determining the magnitude of the input signal; and the encoder outputs a binary code n if the nth comparison strength output is 1 and the (n + 1) th comparator output is 0 according to the output of the comparator.
Illustratively, the optical communication discrete signal is coded, and the output optical communication digital signal can be a binary signal or a decimal signal, depending on the coding mode. For example: when the obtained optical communication digital signal is a decimal signal. When the comparator is a 2-bit comparator, the output discrete signal is: 00. 01, 10, 11, the coded decimal signals are 0, 1, 2, 3.
It should be noted that the delay circuit includes a delay trigger sub-circuit and at least two first storage modules; the delay triggering sub-circuit provides at least two delay clocks to at least two first storage modules in a one-to-one correspondence manner; and the at least two first storage modules correspondingly send optical communication analog signals to the analog-to-digital conversion circuit under the triggering of the at least two delay clocks.
As one possible implementation manner, in order to output optical communication digital signals synchronously, the optical communication signal receiving method of the present invention further includes:
s103: the second synchronization circuit performs a second time synchronization of the at least two optical communication digital signals.
It should be understood that when the first synchronization signal includes a plurality of second storage modules, the number of the output optical communication digital signals is at least two, and at this time, the at least two optical communication digital signals are subjected to second time synchronization so that the output signals are parallel.
The signal receiving apparatus 11 includes a second synchronization circuit 114, and the second synchronization circuit 114 includes a second delay sub-circuit and at least two second storage modules for storing the optical communication digital signals, wherein the second delay sub-circuit is configured to trigger the optical communication digital signals stored in the at least two second storage modules at the same time. The optical communication digital signals can be synchronously output in parallel. It should be understood that the second storage module may be a register, and may also be other storage media with a storage function.
The second time synchronization of the optical communication digital signal is achieved in this step by the second synchronization circuit 114. Of course, in practical application, the optical communication digital signal can be synchronously registered through an external clock, so that synchronous output of the optical communication signal can be realized.
As shown in fig. 3, the embodiment of the present invention further provides a signal receiving apparatus 11. The signal receiving apparatus 11 includes: at least two analog-to-digital conversion circuits 111, configured to perform analog-to-digital conversion on the same optical communication analog signal at different times to obtain at least two optical communication digital signals; a first synchronization circuit 112 electrically connected to the analog-to-digital conversion circuit 111 for performing a first time synchronization of the at least two optical communication digital signals.
Compared with the prior art, the beneficial effects of the signal receiving apparatus 11 provided by the embodiment of the present invention are the same as those of the optical communication signal receiving method described above, and are not described herein again.
As a possible implementation manner, the signal receiving apparatus 11 further includes: the delay circuit 113 is electrically connected with the analog-to-digital conversion circuit 111, at least two analog-to-digital conversion circuits 111 of the analog-to-digital conversion circuit 111 perform analog-to-digital conversion on the same optical communication analog signal at different moments to obtain at least two optical communication digital signals, and the delay circuit 113 is used for delaying the optical communication analog signal under the triggering of at least two delay clocks to obtain at least two optical communication analog signals; the at least two delayed clocks are out of phase.
As a possible implementation, at least two delayed clock frequencies are the same, the delayed clock frequencies being greater than 10 ghz.
As a possible implementation, the delay circuit 113 includes: the delay triggering sub-circuit is electrically connected with the at least two first storage modules, the at least two first storage modules are electrically connected with the analog-to-digital conversion circuit, and the delay triggering sub-circuit is used for providing at least two delay clocks for the first storage modules; the delay triggering sub-circuit is used for providing at least two delay clocks to the at least two first storage modules in a one-to-one correspondence manner; the at least two first storage modules are used for sending optical communication analog signals to the analog-to-digital conversion circuit under the triggering of the at least two delay clocks.
As a possible implementation, each analog-to-digital conversion circuit includes: at least two analog-to-digital conversion sub-circuits, each analog-to-digital conversion sub-circuit comprising an encoder and a plurality of comparators; a plurality of comparators for converting the same optical communication analog signal into at least two optical communication discrete signals; an encoder electrically connected to the plurality of comparators and the first synchronization circuit for converting the at least two discrete optical communication signals into an optical communication digital signal.
As a possible implementation manner, the signal receiving apparatus 11 further includes: and a second synchronization circuit 114 electrically connected to the first synchronization circuit 112 for time synchronizing the at least two optical communication digital signals for a second time.
Compared with the prior art, the beneficial effects of the signal receiving device 11 provided by the present invention are the same as those of the optical communication signal receiving method described above, and are not described herein again.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the apparatus embodiment, since it is substantially similar to the method embodiment, it is relatively simple to describe, and reference may be made to some descriptions of the method embodiment for relevant points.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (13)
1. An optical communication signal receiving method is characterized by being applied to a signal receiving device provided with at least two analog-to-digital conversion circuits and a first synchronization circuit; the optical communication signal receiving method includes:
the at least two analog-to-digital conversion circuits perform analog-to-digital conversion on the same optical communication analog signal at different moments to obtain at least two optical communication digital signals;
the first synchronization circuit performs first time synchronization on at least two optical communication digital signals; the same optical communication analog signal completes the digitization and synchronization of the optical communication analog signal through at least two signal receiving chains; the processing flow of each signal receiving chain to the optical communication analog signal comprises the following steps: first time delay, analog-to-digital conversion and second time delay; the sum of the time of the first time delay and the time of the second time delay in each signal receiving chain is the same.
2. The optical communication signal receiving method according to claim 1, wherein the signal receiving apparatus further comprises: a delay circuit;
before the at least two analog-to-digital conversion circuits perform analog-to-digital conversion on the same optical communication analog signal at different moments to obtain at least two optical communication digital signals, the optical communication signal receiving method further includes:
the delay circuit delays the same optical communication analog signal under the triggering of at least two delay clocks to obtain at least two optical communication analog signals; at least two of the delayed clocks have different phases.
3. The method of receiving an optical communication signal of claim 2, wherein the at least two delayed clock frequencies are the same, and wherein the delayed clock frequency is greater than 10 GHz.
4. The optical communication signal receiving method of claim 2, wherein the delay circuit comprises a delay trigger sub-circuit and at least two first storage modules;
the delay trigger sub-circuit provides at least two delay clocks to at least two first storage modules in a one-to-one correspondence manner;
and the at least two first storage modules correspondingly send the optical communication analog signals to the analog-to-digital conversion circuit under the triggering of the at least two delay clocks.
5. The optical communication signal receiving method of claim 1, wherein the at least two analog-to-digital conversion circuits perform analog-to-digital conversion on the same optical communication analog signal at different times to obtain at least two optical communication digital signals comprises:
each of the at least two analog-to-digital conversion circuits converts at least the same optical communication analog signal into at least two optical communication discrete signals at different times;
each of the at least two analog-to-digital conversion circuits encodes at least two of the optical communication discrete signals to obtain at least two optical communication digital signals.
6. The optical communication signal receiving method according to any one of claims 1 to 5, wherein the signal receiving apparatus further includes: a second synchronization circuit;
after the first synchronization circuit performs first time synchronization on at least two optical communication digital signals, the optical communication signal receiving method further includes:
the second synchronization circuit performs a second time synchronization of at least two of the optical communication digital signals.
7. A signal receiving apparatus, comprising:
the optical communication analog signal processing circuit comprises at least two analog-to-digital conversion circuits, a first optical communication analog signal processing circuit and a second optical communication analog signal processing circuit, wherein the at least two analog-to-digital conversion circuits are used for performing analog-to-digital conversion on the same optical communication analog signal at different moments to obtain at least two optical communication digital signals;
the first synchronization circuit is electrically connected with the analog-to-digital conversion circuit and is used for carrying out first time synchronization on at least two optical communication digital signals; the same optical communication analog signal completes the digitization and synchronization of the optical communication analog signal through at least two signal receiving chains; the processing flow of each signal receiving chain to the optical communication analog signal comprises the following steps: first time delay, analog-to-digital conversion and second time delay; the sum of the time of the first time delay and the time of the second time delay in each signal receiving chain is the same.
8. The signal receiving apparatus according to claim 7, further comprising:
the delay circuit is electrically connected with the at least two analog-to-digital conversion circuits, the at least two analog-to-digital conversion circuits are used for performing analog-to-digital conversion on the same optical communication analog signal at different moments to obtain at least two optical communication digital signals, and the delay circuit is used for delaying the optical communication analog signal under the triggering of at least two delay clocks to obtain at least two optical communication analog signals; at least two of the delayed clocks have different phases.
9. The signal receiving device of claim 8, wherein the at least two delayed clock frequencies are the same, and wherein the delayed clock frequency is greater than 10 GHz.
10. The signal receiving apparatus of claim 8, wherein the delay circuit comprises: the delay trigger sub-circuit comprises a delay trigger sub-circuit and at least two first storage modules;
the delay triggering sub-circuit is electrically connected with at least two first storage modules, the at least two first storage modules are electrically connected with the analog-to-digital conversion circuit, and the delay triggering sub-circuit is used for providing at least two delay clocks for the first storage modules;
the delay trigger sub-circuit is used for providing at least two delay clocks to at least two first storage modules in one-to-one correspondence;
the at least two first storage modules are used for sending the optical communication analog signals to the analog-to-digital conversion circuit in a one-to-one correspondence manner under the triggering of the at least two delay clocks.
11. The signal receiving apparatus of claim 7, wherein each of the analog-to-digital conversion sub-circuits includes an encoder and a plurality of comparators;
a plurality of comparators for converting the same optical communication analog signal into at least two optical communication discrete signals;
an encoder electrically connected to the plurality of comparators and the first synchronization circuit for converting at least two of the optical communication discrete signals to an optical communication digital signal.
12. The signal receiving apparatus according to any one of claims 7 to 11, further comprising:
and the second synchronization circuit is electrically connected with the first synchronization circuit and is used for carrying out second time synchronization on at least two optical communication digital signals.
13. An electronic device comprising the signal receiving apparatus of any one of claims 7 to 11.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911419479.1A CN111130648B (en) | 2019-12-31 | 2019-12-31 | Optical communication signal receiving method, signal receiving device and electronic equipment |
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| CN201911419479.1A CN111130648B (en) | 2019-12-31 | 2019-12-31 | Optical communication signal receiving method, signal receiving device and electronic equipment |
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