CN106130676B - A kind of satellite communication system simulator - Google Patents
A kind of satellite communication system simulator Download PDFInfo
- Publication number
- CN106130676B CN106130676B CN201610452626.5A CN201610452626A CN106130676B CN 106130676 B CN106130676 B CN 106130676B CN 201610452626 A CN201610452626 A CN 201610452626A CN 106130676 B CN106130676 B CN 106130676B
- Authority
- CN
- China
- Prior art keywords
- channel
- data
- signal
- external communication
- control instruction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/391—Modelling the propagation channel
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Relay Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
The invention discloses a kind of satellite communication system simulators, it is a kind of equipment simulated real channel delay error code feature and there is system group network function, including receiving unit, linking element, Channel Elements, transmission unit, channel controller and networking control unit and statistical module.The present invention is for simulating real satellite communication process, the influence of delay and error code feature and network topology structure to communication quality in primary study communication process, compared with the existing technology, Satellite Simulation channel can not only be generated, network structure can also be systematically built, is had the characteristics that highly integrated, easy to operate.
Description
Technical field
The invention belongs to technical field of satellite communication, it is related to a kind of satellite communication system simulator more particularly to one kind can
Real channel delay error code feature and the equipment with system group network function are simulated, support is provided for satellite communication experiment.
Background technology
Satellite communication is to relay to realize the logical of the wireless radio transmission between ground and spatial user by artificial earth satellite
Letter mode has the characteristics that wide coverage, channel are stablized.Satellite communication system simulator can be generated with actual characteristic
Channel model, to realize the transmission of data-signal, so as under the test environment, analog satellite communication process.Wherein
The generation of channel model and the control of network structure are the important components of satellite communication simulation system.
Before the present invention, the simulation of existing satellite communication can generate satisfaction experiment and want generally based on simulation system
The satellite channel asked, but the incomplete material objectization in structure, whole system bulky complex, it is difficult to realize, and have a single function,
Single satellite channel can only be generated, the complicated network structure of analog satellite communication is unable to or only focuses on communication link
It builds, has ignored the importance of channel simulator, and the influence of the characteristic of channel and network topology structure to communication performance can not neglect
Depending on existing equipment or system usually require cover more and interconnect, and increase system complexity.
Invention content
For defect present in above-mentioned satellite communication simulation system, it is an object of the present invention to generate available satellite
Analog channel and reliable network topology structure, by the generation of satellite channel, the transmission of data-signal, network structure foundation collection
In in the satellite communication system simulator of a material objectization, provide technical support for the experiment and research of communication technology of satellite.
In order to realize that above-mentioned task, the present invention use following technical scheme：
A kind of satellite communication system simulator, including：Receiving unit, linking element, Channel Elements, transmission unit, channel
Control unit and networking control unit, wherein：
Receiving unit connects multiple external communication devices, is sent with the mode parallel processing external communication device of multithreading
Data-signal, processing procedure includes the reception to data-signal and the caching to data-signal, and the data-signal of caching is pressed
It is transferred sequentially to linking element；
Linking element is used to carry out link adaptation to the data-signal received, according to the source of data-signal and networking
Connected state information in control instruction between each external communication device, determines the receiving terminal of data-signal, and according to data-link
The corresponding channel status in road, it is determined whether carry out the transmission of data-signal；
Channel Elements generate channel model, which is by tri- kinds of probability of Rayleigh, Rician, Lognormal
The channel analog signal that distribution function is composed, and load multipath effect, Doppler frequency shift in channel model and be inserted into high
This white noise；
Transmission unit is connect with multiple external communication devices, after receiving the data from linking element, will be counted
According to grouping cache in receiving queue, then external communication device is sent data to according to the principle of first in first out；
Channel controller receives the channel parameter by user configuration, and channel parameter is resolved to channel control instruction,
Then channel control instruction is acted on into Channel Elements；Channel control instruction includes multipath fading, Doppler frequency shift and white Gaussian
Noise signal-to-noise ratio；
Networking control unit receives the group network parameters by user configuration, and is networking control instruction by networking Parameter analysis of electrochemical,
Then networking control instruction is acted on into linking element；Networking control instruction be include each external communication device connected state and
Information whether network structure changes.
Further, the satellite communication system simulator further includes statistical module：
Statistical module is respectively monitored transmission unit and receiving unit, and receiving first group of data from receiving unit opens
Beginning timing, transmission unit stop timing when being sent completely last group of data, calculating difference obtains propagation delay time；And according to hair
The statistical signal for sending unit to provide, is calculated the statistical result of flow.
Further, the Channel Elements generate channel mould using the method for probability-distribution function is realized with program
Type；The method is：Based on tri- kinds of probability-distribution functions of Rayleigh, Rician and Lognormal, by channel control
Parameter in system instruction substitutes into three kinds of probability-distribution functions, and channel model is established by way of programming simulation.
Further, the channel model has been divided into channel model and bad channel model, channel list according to channel status
Member realizes according to Markov process, the switching of bad channel model, specially：Only there are two types of situations for the quality of channel, will be good
Channel status is denoted as 1, and probability is denoted as Pg；Bad channel status is denoted as 0, and probability is denoted as Pb；Be uniformly distributed generation 0 to 1 it
Between decimal p compared with Pg or Pb, come decide whether switch channel model.
Further, the group network parameters include the IP address of each external communication device, port, working condition and each
Connection status between communication equipment；The working condition includes connection, disconnect, only send, only receives four kinds of states, described
Connection status include point-to-point connection and netted connection, wherein under point-to-point connection state, every external communication device is only
Can communicate with an other external communication devices, and under netted connection status, every external communication device can with except oneself
Any other external communication device communication except body.
Further, the channel parameter includes that the latitude and longitude coordinates, the speed of service, satellite of each external communication device are high
Degree, working frequency range, noise type and ionospheric error.
Further, the transmission control protocol of the data link uses ARQ mechanism.
A kind of satellite communication system analogy method, includes the following steps：
Step 1, initialization procedure
A group network parameters are sent to networking control unit, networking control unit by user configuration group network parameters and channel parameter
It is networking control instruction by networking Parameter analysis of electrochemical, networking control instruction is acted on into linking element；Channel parameter is sent to letter
Channel parameter is resolved to channel control instruction and acts on Channel Elements by road control unit, channel controller；
Step 2, simulation process
Multiple external communication devices are connect with receiving unit, transmission unit, external communication device is sent to receiving unit
Data-signal, receiving unit pass to linking element in order after being cached to data-signal；
Linking element carries out link adaptation to the data-signal received, according to the source of data-signal and group network control
Connected state information in system instruction between each external communication device, determines the receiving terminal of data-signal, and according to data link
Corresponding channel status, it is determined whether carry out the transmission of data-signal；If carrying out the transmission of data-signal,：
Channel Elements generate channel model, which is by tri- kinds of probability of Rayleigh, Rician, Lognormal
The channel analog signal that distribution function is composed, and load multipath effect, Doppler frequency shift in channel model and be inserted into high
This white noise；
After transmission unit receives the data from linking element, by buffering data packets in receiving queue, then press
External communication device is sent data to according to the principle of first in first out；Complete simulation process.
The present invention has following technical characterstic compared with prior art：
1. satellite communication channel can be generated, and with delay and error code characteristic feature.Satellite communication process is complicated, to channel
The research difficulty of feature is larger, generates the satellite channel with characteristic feature, enhances the specific aim to Research on Channel.
2. can be from the networking structure of system level simulation satellite communication.Single device can connect 4 exterior terminals, terminal type
Can be transmitting terminal or receiving terminal, the single deficiency of analog machine channel before compensating for.The present invention can be point-to-point, logical
It broadcasts, mutually switch between the networking modes such as reticular structure, single device can meet a variety of demands.
3. the control to external terminal operating mode can be realized.Controllable external connection terminal works in connection, disconnection, only
Send, only receive four kinds of states, realize control to entire communication system, compensate for previous analog machine have a single function, system
The not strong disadvantage of property.
Description of the drawings
Fig. 1 satellite communication system simulator principle assumption diagrams of the present invention
Fig. 2 receiving unit principle assumption diagrams of the present invention
Fig. 3 linking element principle assumption diagrams of the present invention
Fig. 4 Channel Elements principle assumption diagrams of the present invention
Fig. 5 transmission unit principle assumption diagrams of the present invention
Fig. 6 channel controller principle assumption diagrams of the present invention
Fig. 7 networking control unit principle assumption diagrams of the present invention
Fig. 8 present system connection figures
Fig. 9 ARQ transmission mechanisms schematic diagrams of the present invention
Figure 10 is the combination diagram of probability-distribution function in Luts models
Specific implementation mode
As shown in Figure 1, the present invention provides a kind of satellite communication system simulator, more external communication devices can be simulated
Communication process under different networking modes.In the present embodiment, gives four external communication devices and carry out showing for communication simulation
Example, as shown in Figure 8.
This satellite communication system simulator of the present invention, including receiving unit, linking element, Channel Elements, transmission list
Member, channel controller and networking control unit；Wherein, receiving unit is sequentially connected with linking element, Channel Elements, is sent
Unit, networking control unit are connect with linking element, and channel controller is connect with Channel Elements.The function that these units are realized
It is as follows respectively：
Receiving unit is connect by signaling interface with external communication device, as shown in Figure 8；The effect of receiving unit is logarithm
It is believed that number being received, being cached and being sent.Fig. 2 gives the concrete structure of receiving unit, by data reception module and data
Cache module forms.Data reception module receives the data-signal that four external communication devices as shown in Figure 8 are sent respectively,
Data cache module is cached in queue to be sent to data-signal according to advanced principle is arrived first, and passes to link list in order
Member；Data reception module and data cache module are set in the present embodiment corresponding to four PERCOM peripheral communication by the way of multithreading
It is standby to share most four threads, parallel processing is carried out to the data-signal sent；The data-signal refers to by PERCOM peripheral communication
Transmitted by equipment, the communication data that is transmitted by channel.
Linking element is used to carry out link adaptation to the data-signal received, according to the source of data-signal and networking
Connected state information in control instruction between each external communication device, determines the receiving terminal of data-signal, and according to data-link
The corresponding channel status in road, it is determined whether carry out the transmission of data-signal.Specifically, as shown in Figure 3：
Linking element is made of link adaptation module, data transmission module.Each outside is contained in networking control instruction
Connected state between communication equipment, such as equipment 1 are connected to 2, then when data-signal source is equipment 1, then can determine number
According to receiving terminal be equipment 2.Link adaptation module is for realizing above-mentioned link adaptation process, source according to networking control instruction
Different data-signals has different transmitting terminal and receiving terminal, therefore there are different links；And data transmission module then root
The transmission of progress data-signal is determined whether according to the state of the corresponding channel of the data link of selection；If channel received signal to noise ratio is high
In threshold level, then data-signal is sent to Channel Elements and carried out data transmission；Otherwise without data transmission.Data link
Transmission control protocol uses ARQ mechanism.
The course of work of the ARQ transmission control protocols is as follows：Channel both ends are respectively transmitting terminal and receiving terminal, originator
Coding groups are carried out to data-signal first, transmission data is grouped to channel and is transmitted, receiving end to the packet that receives into
Row error detection decodes, if receiving end is properly received, to originator feeding back ACK affirmative acknowledgement；If receiving end garbled-reception, to originator
NACK negative responses are fed back, originator retransmits the grouping；If at the appointed time, originator does not receive ACK, this is also retransmitted
Grouping.Coding mode uses LDPC code word, maximum retransmission 3.
Channel Elements by data link transmission come data-signal generate channel model, the channel model be by
The channel analog signal that tri- kinds of probability-distribution functions of Rayleigh, Rician, Lognormal are composed, and in channel model
Middle load multipath effect, Doppler frequency shift and insertion white Gaussian noise, finally pass to hair by channel model by linking element
Send unit.Its specific implementation process is：
Include analog signal module and the doppler modular, multipath module and the noise that are connected thereto inside Channel Elements
Module.Corresponding to different data link, Channel Elements can generate different analog signals simultaneously by way of multithreading.
Wherein, analog signal realizes the method for probability-distribution function to generate with program.In satellite channel modeling, with three kinds of probability point
It is modeled based on cloth function, i.e. Rayleigh, Rician and Lognormal probability-distribution function.The channel mould of this programme
Type is Lutz channel models, and Lutz channel models are formed by these three probability-distribution functions are combined, and analog signal module will
Parameter in channel control instruction substitutes into three kinds of probability-distribution functions, and channel model is established by programming simulation implementation method.
The data-signal that terminal transmits is transmitted in a manner of passing through from channel model, and being added into channel model, (channel simulation is believed
Number) decay characteristics.
In view of in real satellite communication process, relative position changes between satellite and communication equipment, channel hangs in the balance,
Compared to C.Loo models and Corazza models, Luts models are more accurate in terms of the channel characteristics under describing different channels state
Really, therefore this simulator uses Luts models.Luts models are divided into two states according to channel status, by channel circumstance：Good shape
State and bad state.In good state, direct signal component exists and shade shadowing effect is not present；In bad state, it is not present
Direct signal component and by shade masking influenced.
Channel model is the simulation letter being composed of tri- kinds of probability-distribution functions of Rayleigh, Rician, Lognormal
Number, channel model has been divided into channel model and bad channel model according to channel status, and Channel Elements are realized according to Markov process
Good, bad channel model switching, specially：Only there are two types of situations for the quality of channel, good channel status are denoted as 1, bad letter
Road state is denoted as 0, keeps and the probability of conversion is respectively Pg, Pb, then Pg+Pb=1；Be uniformly distributed generation 0 to 1 it
Between decimal p compared with Pg or Pb, come decide whether switch channel model.
Building is often encountered in satellite communication, tree is planted, landform is blocked, make signal because the effect of scattering diffraction is from a plurality of
Propagated, multiple signals influence each other to generate multipath fading；Relative motion between satellite and communication equipment is to receive
Signal frequency shifts, to generate Doppler frequency shift；Exist in transmission environment between satellite and communication equipment and largely makes an uproar
Sound, including solar system noise, cosmic noise, atmospheric noise, rainfall noise, surface noise, interference noise and system itself
Noise is usually set as white Gaussian noise by noise etc. in modeling.In order to simulate the above process, multipath module is used to believe in simulation
Signal fadeout and time delay caused by multipath effect are loaded in number, doppler modular is used to load Doppler's frequency in analog signal
It moves, noise module in analog signal for being inserted into white Gaussian noise.
Transmission unit is connect with multiple external communication devices, by data cache module and data transmission blocks group
At；After receiving the data from linking element, by buffering data packets in receiving queue, data are sent data cache module
Module is according to the principle of first in first out by the data transmission in receiving queue to external communication device.
Channel controller receives the channel parameter by user configuration, and channel parameter is resolved to channel control instruction,
Then channel control instruction is acted on into Channel Elements；Channel control instruction includes multipath fading, Doppler frequency shift, Gauss white noise
Sound signal-to-noise ratio and satellite elevation angle；As shown in fig. 6, channel controller resolves mould by channel parameter receiving module, channel instruction
Block is constituted.Channel parameter receiving module is used to read the good channel parameter of user configuration from user interface, and channel instruction resolves logical
The channel parameter of configuration is parsed into channel control instruction by the method for crossing program calculating, such as：It is run with the parameter of user configuration
For speed, the theoretical calculation that the parameter Doppler frequency shift in channel control instruction is stored in channel instruction resolves module is public
Formula can show that Doppler frequency shift, calculated Doppler frequency shift refer to as channel control by the formula by the speed of service
A part for order, acts on Channel Elements, to be loaded in analog signal in Channel Elements.Channel parameter has：PERCOM peripheral communication
Latitude and longitude coordinates, the speed of service, satellite altitude, working frequency range, noise type and the ionospheric error of equipment.
Networking control unit receives the group network parameters by user configuration, and is networking control instruction by networking Parameter analysis of electrochemical,
Then networking control instruction is acted on into linking element；Networking control instruction be include each external communication device connected state and
Information whether network structure changes.Group network parameters have：The IP address of each external communication device, port, working condition and each
Connection status between communication equipment；The working condition includes connection, disconnect, only send, only receives four kinds of states, described
Connection status include point-to-point connection and netted connection, wherein under point-to-point connection state, every external communication device is only
Can communicate with an other external communication devices, and under netted connection status, every external communication device can with except oneself
Any other external communication device communication except body.
As shown in fig. 7, networking control unit resolves module composition by a group network parameters receiving module, networking instruction.Networking is joined
Number receiving module receives the good group network parameters of user configuration, and networking instruction resolves module and calculates networking according to a group network parameters
Control instruction, i.e., the information whether connected state and network structure between each external communication device change, these information
It is supplied to linking element, in order to the selection of communication link.Software interface in Fig. 1 is to input and organize network parameters for channel parameter
Input provides a visual interface, and the various information that simulator operational process generates is shown.
In addition, in order to record the information such as flow, delay in simulation process, statistics mould can be further set in this programme
Block：
Statistical module is connect with transmission unit and receiving unit, is monitored respectively to transmission unit and receiving unit, from
Receiving unit receives first group of data and starts timing, and transmission unit stops timing when being sent completely last group of data, meter
It calculates difference and obtains propagation delay time；And the statistical signal provided according to transmission unit, the statistical result of flow is calculated.
In conclusion the satellite communication system analogy method of the present invention, includes the following steps：
Step 1, initialization procedure
A group network parameters are sent to networking control unit, networking control unit by user configuration group network parameters and channel parameter
It is networking control instruction by networking Parameter analysis of electrochemical, networking control instruction is acted on into linking element；Channel parameter is sent to letter
Channel parameter is resolved to channel control instruction and acts on Channel Elements by road control unit, channel controller；
Step 2, simulation process
Multiple external communication devices are connect with receiving unit, transmission unit, external communication device is sent to receiving unit
Data-signal, receiving unit pass to linking element in order after being cached to data-signal；
Linking element carries out link adaptation to the signal received, is referred to according to the source of data-signal and networking control
Connected state information in order between each external communication device determines the receiving terminal of data-signal, and is corresponded to according to data link
Channel status, it is determined whether carry out the transmission of data-signal；If carrying out the transmission of data-signal,：
Channel Elements by data link transmission come data-signal generate channel model, the channel model be by
The channel analog signal that tri- kinds of probability-distribution functions of Rayleigh, Rician, Lognormal are composed, and in channel model
Middle load multipath effect, Doppler frequency shift and insertion white Gaussian noise；
After transmission unit receives the data from linking element, by buffering data packets in receiving queue, then press
External communication device is sent data to according to the principle of first in first out；Complete simulation process.
Claims (8)
1. a kind of satellite communication system simulator, which is characterized in that including：Receiving unit, linking element, Channel Elements, transmission
Unit, channel controller and networking control unit, wherein：
Receiving unit connects multiple external communication devices, the data sent with the mode parallel processing external communication device of multithreading
Signal, processing procedure include the reception to data-signal and the caching to data-signal, and in order by the data-signal of caching
Pass to linking element；
Linking element is used to carry out link adaptation to the data-signal received, is controlled according to the source of data-signal and networking
Connected state information in instruction between each external communication device, determines the receiving terminal of data-signal, and according to data link pair
The channel status answered, it is determined whether carry out the transmission of data-signal；
Channel Elements generate channel model, which is by tri- kinds of probability of Rayleigh, Rician, Lognormal
The analog signal that distribution function is composed, and multipath effect, Doppler frequency shift and insertion white Gaussian are loaded in channel model
Noise；
Transmission unit is connect with multiple external communication devices, after receiving the data from linking element, by data point
Group is cached in receiving queue, then sends data to external communication device according to the principle of first in first out；
Channel controller receives the channel parameter by user configuration, and channel parameter is resolved to channel control instruction, then
Channel control instruction is acted on into Channel Elements；Channel control instruction includes multipath fading, Doppler frequency shift and white Gaussian noise
Signal-to-noise ratio；
Networking control unit receives the group network parameters by user configuration, and is networking control instruction by networking Parameter analysis of electrochemical, then
Networking control instruction is acted on into linking element；Networking control instruction is the connected state and network for including each external communication device
Information whether structure changes.
2. satellite communication system simulator as described in claim 1, which is characterized in that the satellite communication system simulator
It further include statistical module：
Statistical module is respectively monitored transmission unit and receiving unit, is counted since receiving unit receives first group of data
When, transmission unit stops timing when being sent completely last group of data, calculating difference obtains propagation delay time；And it is single according to sending
The statistical signal that member provides, is calculated the statistical result of flow.
3. satellite communication system simulator as described in claim 1, which is characterized in that the Channel Elements are used with program
The method of probability-distribution function is realized to generate channel model；The method is：With Rayleigh, Rician and
Based on tri- kinds of probability-distribution functions of Lognormal, the parameter in channel control instruction is substituted into three kinds of probability distribution
In function, channel model is established by way of programming simulation.
4. satellite communication system simulator as described in claim 1, which is characterized in that the channel model is according to channel shape
State has been divided into channel model and bad channel model, and Channel Elements realize according to Markov process, the switching of bad channel model, tool
Body is：Only there are two types of situations for the quality of channel, good channel status are denoted as 1, probability is denoted as Pg；Bad channel status is denoted as 0,
Probability is denoted as Pb；It is compared with Pg or Pb with the decimal p between be uniformly distributed generation 0 to 1, to decide whether to switch channel
Model.
5. satellite communication system simulator as described in claim 1, which is characterized in that the group network parameters include each outside
Connection status between the IP address of communication equipment, port, working condition and each communication equipment；The working condition includes
Connection is disconnected, is only sent, only receiving four kinds of states, and the connection status includes point-to-point connection and netted connection, wherein
Under point-to-point connection state, every external communication device can only be communicated with an other external communication devices, and in netted company
It connects under state, every external communication device can be communicated with any other external communication device in addition to itself.
6. satellite communication system simulator as described in claim 1, which is characterized in that the channel parameter includes each outside
Latitude and longitude coordinates, the speed of service, satellite altitude, working frequency range, noise type and the ionospheric error of communication equipment.
7. satellite communication system simulator as described in claim 1, which is characterized in that the transmission of the data link controls
Agreement uses ARQ mechanism.
8. a kind of satellite communication system analogy method, which is characterized in that include the following steps：
Step 1, initialization procedure
A group network parameters are sent to networking control unit by user configuration group network parameters and channel parameter, and networking control unit is by group
Network parameters resolve to networking control instruction, and networking control instruction is acted on linking element；Channel parameter is sent to channel control
Channel parameter is resolved to channel control instruction and acts on Channel Elements by unit processed, channel controller；
Step 2, simulation process
Multiple external communication devices are connect with receiving unit, transmission unit, external communication device is to receiving unit transmission data
Signal, receiving unit pass to linking element in order after being cached to data-signal；
Linking element carries out link adaptation to the data-signal received, according to the source of data-signal and networking control instruction
In connected state information between each external communication device, determine the receiving terminal of data-signal, and corresponding according to data link
Channel status, it is determined whether carry out the transmission of data-signal；If carrying out the transmission of data-signal,：
Channel Elements generate channel model, which is by tri- kinds of probability distribution of Rayleigh, Rician, Lognormal
Channel analog signal made of combination of function, and multipath effect, Doppler frequency shift and insertion white Gaussian are loaded in channel model
Noise；
After transmission unit receives the data from linking element, by buffering data packets in receiving queue, then according to elder generation
External communication device is sent data into the principle first gone out；Complete simulation process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610452626.5A CN106130676B (en) | 2016-06-21 | 2016-06-21 | A kind of satellite communication system simulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610452626.5A CN106130676B (en) | 2016-06-21 | 2016-06-21 | A kind of satellite communication system simulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106130676A CN106130676A (en) | 2016-11-16 |
| CN106130676B true CN106130676B (en) | 2018-09-25 |
Family
ID=57471081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610452626.5A Active CN106130676B (en) | 2016-06-21 | 2016-06-21 | A kind of satellite communication system simulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106130676B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1746747A1 (en) * | 2005-07-21 | 2007-01-24 | DLR Deutsches Zentrum für Luft- und Raumfahrt e.V. | Method for emulating a multi-path transmission channel |
| CN101404547A (en) * | 2008-11-21 | 2009-04-08 | 中国科学院软件研究所 | Satellite network simulation system |
-
2016
- 2016-06-21 CN CN201610452626.5A patent/CN106130676B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1746747A1 (en) * | 2005-07-21 | 2007-01-24 | DLR Deutsches Zentrum für Luft- und Raumfahrt e.V. | Method for emulating a multi-path transmission channel |
| CN101404547A (en) * | 2008-11-21 | 2009-04-08 | 中国科学院软件研究所 | Satellite network simulation system |
Non-Patent Citations (2)
| Title |
|---|
| 低轨卫星信道模拟器控制终端设计与实现;牛俊坡;《中国优秀硕士学位论文全文数据库 信息科技辑》;20111215;全文 * |
| 宽带卫星信道模拟器关键技术研究;蒋剑;《中国优秀硕士学位论文全文数据库 信息科技辑》;20160315;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106130676A (en) | 2016-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Ko et al. | Contikirpl and tinyrpl: Happy together | |
| Masiero et al. | DESERT Underwater: an NS-Miracle-based framework to DEsign, Simulate, Emulate and Realize Test-beds for Underwater network protocols | |
| Kouvelas et al. | Employing p-CSMA on a LoRa network simulator | |
| CN103259696A (en) | Network bandwidth detecting method and device and network devices | |
| CA2758776C (en) | Communications effects in network simulations | |
| Lima et al. | Water ping: ICMP for the internet of underwater things | |
| CN107508645B (en) | Underwater acoustic sensor network simulation test method and platform thereof | |
| US9825820B2 (en) | Communication effects in network simulations | |
| CN106130676B (en) | A kind of satellite communication system simulator | |
| CN102468893B (en) | The method and system of test performance of multi-input multi-output | |
| CN106059695B (en) | A kind of mobile command system training holding equipment based on meteoric trail communication | |
| Kürner et al. | 3D ray-tracing embedded into an integrated simulator for car-to-X communications | |
| CN117693059A (en) | Resource scheduling method, device and system, storage medium and electronic system | |
| CN113923743A (en) | Routing method, device, terminal and storage medium for electric power underground pipe gallery | |
| Su et al. | A dtn supportive network simulator for underwater acoustic sensor networks | |
| EP3029977B1 (en) | Communication effects in network simulations | |
| CN109905188A (en) | A kind of water sound sensor network simulation system | |
| Igel et al. | A CC2420 Transceiver Simulation Module for ns-3 and its Integration into the FERAL Simulator Framework | |
| Pueyo Centelles et al. | LoRaMoto: a LoRa-based communication system for coordinated response in an earthquake aftermath (excerpt) | |
| Lehocine | Robust Low-Cost Multiple Antenna Processing for V2V Communication | |
| Liao | Performance evaluation of real-time bilateral teleoperation systems with wired and wireless network simulation | |
| CN118102360A (en) | Link level high-fidelity network simulation method based on container | |
| RU47598U1 (en) | INTEGRATED RADIO Node SIMULATOR | |
| Kehrer | Link Layer Measurements in Wireless Sensor Networks | |
| Sheth et al. | Communications Realism with Integrated Terrain-Environment-Multipath Model |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |