CN106330365B - When jump/building method of frequency-hopping communication system multinode network simulated environment - Google Patents
When jump/building method of frequency-hopping communication system multinode network simulated environment Download PDFInfo
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
- H04B1/7136—Arrangements for generation of hop frequencies, e.g. using a bank of frequency sources, using continuous tuning or using a transform
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Abstract
When a kind of jump proposed by the present invention/building method of frequency-hopping communication system multinode network simulated environment, it is desirable to provide a kind of building method of the multinode network simulated environment with good Universal and scalability.The technical scheme is that：Network simulator is connected scene driver by interface unit 2, and the network equipments of all nodes of network is by n 1 connected network simulator of interface unit, when building jump/frequency-hopping communication system multinode network simulated environment；The simulation of scene driver generates the movement locus of all nodes, and the position data of all nodes is sent to network simulator in real time；Network simulator calculates the propagation delay and signal-to-noise ratio of data packet pulse according to node location data, update the pulse time-frequency distributions of each receiving node, judge whether destination node can be properly received data packet, the effective impulse number of statistical data packet, statistical result is sent to each meshed network equipment, updated data package arrives at the pulse time-frequency distributions of each receiving node.
Description
Technical field
The present invention relates to suitable for jump when/frequency hopping wireless communication system under a kind of multinode network analogue technique, tool
Body be related to jump when/frequency-hopping communication system multinode network simulated environment building method.
Background technology
Spread spectrum communication is a kind of utilization pseudo noise code unrelated with information, makes radiofrequency signal passband width much larger than letter
Information signal（Baseband signal）The communication mode of frequency bandwidth, abbreviation spread spectrum communication.The radiofrequency signal frequency bandwidth of spread spectrum communication, can
Expand to tens times or even thousands of times of information signal frequency bandwidth.Frequency hopping is to go to be controlled with specific frequency hopping code sequence
Frequency synthesizer processed makes a kind of method of the continuous saltus step of carrier frequency and spread-spectrum.It is with strong antijamming capability, anti-ageing
Fall, low intercepting and capturing rate, CDMA, signal are hidden, secrecy, ranging, reliable and stable and a series of uniquenesses such as be easy to networking advantage.
In frequency-hopping system, the selection of Hopping frequencies is realized with pseudo noise code, and tens of frequency hopping communications even thousands of
Frequency is controlled by transmitted breath and the combination of pseudo noise code.Since the working frequency of system is in ceaselessly saltus step, each
Residence time is only millisecond or Microsecond grade on frequency point.The frequency hopping speed of frequency-hopping communication system reflects the performance of system,
Good frequency-hopping system number of hops per second can reach jumps up to ten thousand.According to the speed of frequency hopping rate, frequency-hopping system can be divided into
Fast frequency hopping and slow frequency hopping.Fast frequency hopping has more than one frequency hopping, i.e. frequency hopping rate to be more than letter during referring to primary transmitting signal
Cease rate；Otherwise referred to as slow frequency hopping.Slow frequency hopping system is at low cost, easily realizes, is usually used in all kinds of civil systems, to improve communication matter
Amount and channel utilization.Fast frequency hopping system has stronger anti-interference, anti-intercepting and capturing and artificially blocks energy compared with slow frequency hopping system
Power.As soon as slow frequency hopping sequence jumps to next frequency band after transmitting several bits in frequency band, and fast frequency hopping transmits a bit
Multiple frequency hopping is undergone, therefore fast frequency hopping can obtain frequency diversity gain relative to slow frequency hopping on each transmitting symbol,
But the technical sophistication of fast frequency hopping and the selection for limiting data modulation.Fast frequency hopping communication refers to that the saltus step speed of frequency is more than
The communication system of the rate of information throughput.Conventional frequency hopping communications by using spread spectrum technique, using it is unrelated with information it is pseudo- with
The frequency of machine sequence control signal is in wider frequency range saltus step.Since the frequency hopping table that the pseudo-random sequence determines is true in advance
Fixed, it cannot in real time be adjusted according to electromagnetic environment state.Frequency hop sequences and two important sets that time-hopping sequence is in spread spectrum communication
At part, since the spreading gain of frequency hop sequences is higher, and there is multiple access performance, so using very extensively, people grind it
Study carefully also very much.But for a long time due to time-hopping sequence itself there is no spread spectrums truly, processing gain is not high, institute
To be only limited to be used in combination with direct sequence and frequency hop sequences.Time saltus step is also a kind of spread spectrum technique.Hop-time spread spectrum is logical
Letter system（Time Hopping Spread Spectrum Communication Systems, TH-SS）It is that time saltus step is expanded
The abbreviation of spread spectrum spectrum communication system is mainly used in time division multiple acess (TDMA) communication.Similar to frequency-hopping system, when jump is to make transmitting
Signal discretely saltus step on a timeline.When jump（TH-Time Hopping）It is one of the mode of spread spectrum communication, with frequency hopping phase
Seemingly, it is to make the saltus step on a timeline of transmitting signal.Time shaft is divided into many time slice first.Which time slice transmitting letter in a frame
It number goes to be controlled by spread spectrum code sequence.It is interpreted as when can be jump：The time shift of more time slice of selection is carried out with certain code sequence
Keying.Time shaft can also be divided into many time slots, these time slots are commonly referred to as time slice, several time slice in hop-time spread spectrum communication
Time frame when composition one is jumped.Which slot transmission signal is gone to be controlled by spread spectrum code sequence in a frame.It therefore, can be jump
When be interpreted as：The time-shift keying of the multi-slot of selection is carried out with a pseudo-random code sequence.In typical jump/frequency-hopping communication system
In, typical when jumping/frequency-hopping communication system as shown in Figure 5, have it is multiple can be with the node of information mutual communication.Each node mainly wraps
Containing three big composition functions：Information source mainly realizes that the data message for generating and receiving specific format, the network equipment mainly realize net
The encapsulation of network protocol integrated test system and data packet, radio transmission apparatus mainly realize the physical transfer of data packet.All nodes in network
Collection be collectively referred to as node listing.Each node uses the contention access mode counted based on pulse in network, total no more than channel
Multiple nodal parallels are allowed to send in the case of capacity, each node utilizes specific waveform control parameter（It include mainly time-frequency
The parameters such as pattern, power and rate）Transmission data packet.Each data packet includes spatially multiple pulses in time-frequency two-dimensional, is owned
The Two dimensional Distribution relationship of frequency and time that pulse is presented at some receiving node, referred to as pulse time-frequency distributions.With such as Fig. 6 institutes
Show that different filling patterns distinguish the data packet from different sending nodes.Receiving node often has more receipts abilities, as long as receiving
Pulse number and signal quality meet demodulation and decoding requirements, can be completely by multiple from the transmission of different sending nodes
Data packet recovery comes out.Jump when/frequency-hopping communication system in, generate data-message and be sent to network node be referred to as source save
Point, the node for needing to receive data-message from network is purpose node, and due to the broadcast characteristic of wireless channel, source node is sent
Data packet in all receiving nodes（Including destination node and non-destination node）It will produce pulse time-frequency distributions.
It debugs and tests in procotol, usually there are three types of technological means：
Networks simulation technology：The protocol model provided using Network Simulation Software and configuration tool, can easily be emulated
Complicated network topology, however the agreement not executed not instead of really run in Network Simulation Software, operation in logic,
It can not be applied directly to target network, simulation result often has larger difference with actual conditions；
Network object test technology：Using true node-node transmission equipment, under true communication environment, network survey is built
Platform is tried, this method and live network usage scenario are closest, and test data is the most credible, but for fairly large network
The exploitation and test of agreement, it is difficult to bear expensive expense caused by needing a large amount of real equipments, and in test site node cloth
It also is difficult to reach the change in topology requirement of target network in office.
Network modeling technique：Network analog can execute true net under a controllable and repeatable laboratory environment
Network protocol code.Compared with network simulation, the interaction of agreement is all true in network simulator, and network flow physically passes through
Simulated environment, simulated environment can really reflect network environment and dynamic flow, such as delay, packet loss and link down.
Compared with Instruction Network Test System Platform, network analog can carry out the debugging and test of procotol in laboratory environments, accelerate tune
Examination and testing progress, save expense, are a kind of practical reliable network protocol testing methods.
Existing network modeling technique is to be directed to determine frequency constant speed communication system mostly（Such as mobile ad hoc network）, data communicated
Time to time change, network simulator are not only capable of offer channel busy-idle condition and lead to data the communication frequency used in journey with rate
It is disconnected to differentiate, and accurate channel pulse statistical conditions cannot be provided, when cannot embody jump/frequency-hopping communication system is based on time-frequency pulse
Communication feature, therefore when cannot be satisfied jump/frequency-hopping communication system under the conditions of multinode to the simulation requirement of channel circumstance.
Invention content
The purpose of the present invention is to provide one kind having good Universal and scalability, is provided for the node of direct communication
Data exchange with delay provides access control required pulse statistical information, is applicable in for the network equipment of each node
In jump when/frequency-hopping communication system multinode network simulated environment building method, with solve jump when/frequency-hopping communication system network
The technical barrier of protocol debugging and test.
The purpose of the present invention is what is be achieved through the following technical solutions：When a kind of jump/frequency-hopping communication system multinode network
The building method of simulated environment has following technical characteristic：When jump/frequency-hopping communication system is using passing through the statistics to time-frequency pulse
Analyze come when simulating true jump/network simulator of the multinode network environment of frequency hopping communications, network simulator passes through interface list
First 2 connected scene drivers, the network that network simulator passes through all nodes of 1 connected network of n interface unit being laid out thereon
Equipment, when building jump/frequency-hopping communication system multinode network simulated environment；The simulation of scene driver generates the movement of all nodes
The position data of all nodes is sent to network simulator by track in real time；The network simulator period receives scene driver
The data packet in node location data and source node identification source and waveform control parameter information, each data packet is in time-frequency two-dimensional space
Upper includes multiple pulses, the Two dimensional Distribution relationship of frequency and time that all pulses are presented at some receiving node, referred to as arteries and veins
Rush time-frequency distributions；Network simulator calculates the communication distance of source node and each receiving node using newest node location data,
And then the propagation delay that each receiving node is arrived in data packet pulse is found out, utilize the power information in waveform control parameter
In conjunction with the communication distance being calculated, the signal-to-noise ratio of each receiving node received data packet pulse is calculated, according to calculating data packet
The propagation delay and signal-to-noise ratio of pulse update the pulse time-frequency distributions of each receiving node, judge destination node received data packet
Signal-to-noise ratio >=predetermined threshold SNRr it is whether true, if set up, then it is assumed that data packet can be properly received, if can be correct
Received data packet, then the effective impulse number of statistical data packet, thinks that data packet cannot be properly received if invalid, if
Data packet then packet discard cannot be properly received, wherein SNRr is the preset parameter for being preset at computing unit, indicates that node connects
The required signal-to-noise ratio of data packet is received, effective impulse number refers to signal-to-noise ratio higher than predetermined threshold SNRr and carries out pulse overlap screening
Pulse number afterwards, wherein pulse overlap refer to pulse of multiple signal-to-noise ratio higher than SNRr over time or over frequency in the presence of overlapping existing
As；Then according to the effective impulse number of the newest pulse time-frequency distributions statistical data packet of the destination node network equipment, Xiang Gejie
Point sends the statistical result that the network equipment sends effective impulse number, according to data packet effective impulse accounting η=effective impulse number
Mesh/pulse total number, it is determined whether deliver a packet to the node being less than, i.e. computing unit calculates data packet effective impulse and accounts for
It is transferred to crosspoint if η >=Thd than η=effective impulse number/pulse total number, destination node is sent to through interface unit 1
The network equipment, be otherwise transferred to crosspoint packet discard, wherein Thd is the preset parameter for being preset at computing unit, indicate
The required minimum effective impulse accounting of node received data packet；Network simulator is provided for each node required for access control
Pulse statistical information, pair can with the node of direct communication provide with delay data exchange capability；The meter of network simulator
Propagation delay of the unit according to calculating is calculated, in conjunction with the frequency patterns information in waveform control parameter, updated data package arrives at each
The pulse time-frequency distributions of receiving node.
The present invention has the advantages that compared with the prior art.
With good versatility.The network equipment of all nodes of network is passed through 1 connected network of interface unit by the present invention
Simulator, scene driver is by 2 connected network simulator of interface unit, when building jump/frequency-hopping communication system multinode network
Simulated environment has good versatility；Sentenced by analyzing communication ability of the pulse time-frequency distributions between arbitrary network node and doing
Not, for that can provide the data exchange with delay with the node of direct communication, and the network equipment for each node provides access
Required pulse statistical information is controlled, when to solve jump/frequency-hopping communication system procotol is debugged and the technology of test
Problem.
With excellent extensibility.The present invention is passed through using that can access multiple true network equipment network simulators
To the statistical analysis of time-frequency pulse come when simulating true jump/the multinode network environment of frequency hopping communications, utilize the network equipment
Wired interconnection is interconnected instead of the radio transmission apparatus of true environment, has excellent extensibility.It solves and builds object test
The problem that the cost that environment is brought is too high and deployment is difficult can debug for procotol and provide an ideal net with test
Network simulated environment.
Improve the confidence level of multinode network simulation.The present invention generates the fortune of all nodes using the simulation of scene driver
The position data of all nodes is sent to network simulator by dynamic rail mark in real time；The network simulator period receives scene driver
Node location data and source node data packet and waveform control parameter information, calculate the propagation delay and letter of data packet pulse
It makes an uproar and compares, update the pulse time-frequency distributions of each receiving node, judge whether destination node can be properly received data packet, according to mesh
The newest pulse time-frequency distributions of meshed network equipment, the effective impulse number of statistical data packet, to each meshed network equipment send out
Statistical result is sent, required pulse statistical information is controlled for the access that provides of each node, it pair can be with the node of direct communication
Data exchange capability with delay is provided；Due to being the accurate simulation to time-frequency distribution of pulses, simulation precision is up to Microsecond grade.
It overcomes pure network software and emulates the relatively low problem of the confidence level brought.
Description of the drawings
Fig. 1 be the present invention jump when/frequency-hopping communication system multinode network simulated environment schematic diagram.
Fig. 2 is the composition schematic diagram of Fig. 1 network simulators.
When Fig. 3 is present invention jump/frequency-hopping communication system multinode network dry run flow chart.
Fig. 4 is the process chart of Fig. 1 network simulators.
When Fig. 5 typically jumps for the prior art/frequency-hopping communication system schematic diagram.
Fig. 6 is the schematic diagram of the pulse time-frequency distributions of Fig. 5.
Specific implementation mode
Refering to 1.According to the present invention, the network equipment of all nodes of network passes through 1 connected network simulator of interface unit, field
Scape driver is by 2 connected network simulator of interface unit, when building jump/frequency-hopping communication system multinode network simulated environment；
The simulation of scene driver generates the movement locus of all nodes, and the position data of all nodes is sent to network analog in real time
Device；The network simulator period receives the node location data of scene driver and the data packet in source node identification source is controlled with waveform
Parameter information calculates the propagation delay and signal-to-noise ratio of data packet pulse, updates the pulse time-frequency distributions of each receiving node, judges
Whether destination node can be properly received data packet, according to the newest pulse time-frequency distributions of the destination node network equipment, statistical number
According to the effective impulse number of packet, statistical result is sent to each meshed network equipment, for providing needed for access control for each node
The pulse statistical information wanted, pair can with the node of direct communication provide with delay data exchange capability；Network simulator meter
Propagation delay of the unit according to calculating is calculated, in conjunction with the frequency patterns information in waveform control parameter, updated data package arrives at each
The pulse time-frequency distributions of receiving node.
Interface unit 1 can be high speed fibre interface, and interface unit 2 can be Ethernet interface.Position data is mainly wrapped
Longitude, latitude containing node and elevation information；Communication ability of the network simulator between source node and destination node carries out
Differentiate, pair can provide the data exchange capability with delay with the node of direct communication, and is carried for the network equipment of each node
Required pulse statistical information is controlled for access.
Refering to Fig. 2.Network simulator includes mainly four functional units：It provides and is connect with the network equipment, scene driver
The interface unit of mouth adaption function；The pulse of communication ability discrimination function and node between source node and destination node is provided
The computing unit of statistical function；It is cached to receiving the data packet from meshed network equipment, and according to the meter of computing unit
Calculate the crosspoint for the packet-switching for having delay that result executes between node；For memory node position, power, rate, when
The storage unit of the calculating parameters such as frequency pattern.
Refering to Fig. 3.Scene driver sends the real-time position of all-network node to 2 period of interface unit of network simulator
Set data, after the interface unit 1 of network simulator receives the real time position data of network node, update node location data is simultaneously put
Enter storage unit to be stored；
After the destination node network equipment receives the data packet of the transmission of the interface unit 1 from network simulator, number is extracted
According to message, it is sent to the information source of this node；After the information source of source node generates data message, the network equipment envelope through this node
When dressing up data packet, and to 1 transmission data packet of the interface unit of network simulator under the control of channel access protocol, and providing
The waveforms control parameter information such as frequency pattern, transmission power, transmission rate；
Data packet after reception is put into crosspoint caching by the interface unit 1 of network simulator, by waveform control parameter
It is put into storage unit to be stored, and records the time of reception t1 of data packet；Computing unit utilizes the newest node of storage unit
Position data calculates the communication distance of source node and each receiving node, and then finds out data packet pulse and arrive at each receiving node
Propagation delay；Computing unit is using the power information in the waveform control parameter of storage unit, in conjunction with what is be calculated
Communication distance calculates the signal-to-noise ratio of each receiving node received data packet pulse；
Computing unit is updated the data according to the propagation delay of calculating in conjunction with the frequency patterns information in waveform control parameter
Packet arrives at the pulse time-frequency distributions of each receiving node, mainly includes frequency, initial time and the pulse width etc. of each pulse
Information；Computing unit judges whether signal-to-noise ratio >=predetermined threshold SNRr of destination node received data packet is true, if then in number
According to packet pulse, all the arrival destination node moment is denoted as t2, t2=t1（s）+tp（s）+ data packet length（bit）/ transmission rate
（Bps, wherein tp are propagation delay of the source node to destination node, according to the newest pulse time-frequency distributions of destination node, statistical number
According to the effective impulse number of packet, otherwise it is assumed that data packet cannot be properly received, wherein SNRr is the fixation for being preset at computing unit
Parameter indicates that the required lowest signal-to-noise of node received data packet, the signal-to-noise ratio that effective impulse number refers to are higher than predetermined threshold
SNRr and carry out pulse overlap screening after pulse number, pulse overlap refer to multiple signal-to-noise ratio higher than SNRr pulse when
Between or frequency on there is overlapping phenomenon.The computing unit period counts the effective impulse number that each node receives, and pulse is united
Meter result is sent to corresponding meshed network equipment by interface unit 1.
The computing unit of network simulator judges that effective impulse number/data packet total number >=predetermined threshold Thd is
No establishment, if then thinking that data packet can be properly received, otherwise it is assumed that cannot be properly received, wherein Thd is to be preset at calculating
The preset parameter of unit indicates the required minimum effective impulse accounting of node received data packet.
The crosspoint of network simulator is according to the result of calculation of computing unit, if result of calculation is that can be properly received number
According to packet, then data packet is sent to the network equipment of destination node through interface unit 1 immediately, otherwise packet discard.
Referring to Fig. 4, the process flow of network analog controller is given in figure.
When jump step 600, after/frequency-hopping communication system starts, interface unit 2 of network simulator etc. is to be received to come from scene
The node location data of driver is transferred to the interface unit 2 of step 603 network simulator by the position of reception if receiving
It is put into storage unit after data update to be stored, otherwise continues waiting for；Position data includes that node longitude, latitude and height are believed
Breath.
When jump step 601, after/frequency-hopping communication system starts, interface unit 1 of network simulator etc. is to be received to come from network
The data packet of equipment, if the data packet that the network equipment for receiving arbitrary node is sent, is transferred to step 604, otherwise continues
It waits for；
When jump step 602, after/frequency-hopping communication system starts, network simulator computing unit waits for pulse measurement period
It arrives, if pulse measurement period arrives, is transferred to step 614, otherwise continues waiting for；
Step 603：The interface unit 2 of network simulator is put into storage unit after updating the position data of reception and deposits
Storage, is then transferred to step 604；
Step 604：The data packet of reception is put into crosspoint and cached by the interface unit 1 of network simulator, by when
The waveforms control parameter information such as frequency pattern, transmission power, transmission rate is put into storage unit and is stored, and records data packet
Time of reception t1, is then transferred to step 605；
Step 605：Network simulator computing unit utilizes the newest node location data of storage unit, calculates source data packet
The communication distance of node and all receiving nodes, is then transferred to step 606；
Step 606：The computing unit of network simulator calculates source node using the newest node location data of storage unit
With the communication distance of each receiving node, it is then transferred to step 607；
Step 606：Network simulator computing unit calculates data packet pulse and arrives at each using the communication distance calculated
The propagation delay of receiving node, is then transferred to step 607；
Step 607：Network simulator computing unit utilizes the power information in the waveform control parameter of storage unit,
In conjunction with the communication distance being calculated, the signal-to-noise ratio of each receiving node received data packet pulse is calculated, step is then transferred to
608；
Step 608：Network simulator computing unit is according to the propagation delay of calculating, in conjunction with the time-frequency in waveform control parameter
Pattern-information, updated data package arrive at the pulse time-frequency distributions of each receiving node, include mainly frequency, the starting of each pulse
The information such as time and pulse width, are then transferred to step 609；
Step 609：Whether network simulator computing unit judges the signal-to-noise ratio of destination node received data packet not less than pre-
Determine thresholding SNRr, wherein SNRr is the preset parameter for being preset at computing unit, indicates that node received data packet is required minimum
Otherwise signal-to-noise ratio is transferred to step 612 if being then transferred to step 610；
Step 610：Network simulator computing unit all arrives at the destination node moment in data packet pulse（It is denoted as t2）It will
Whole pulses that the data packet that destination node receives includes carry out pulse overlap screening successively, that is, calculate data packet effective impulse number
For mesh=data packet pulse sum-there are the umber of pulse of pulse overlap phenomenon, pulse overlap refers to multiple signal-to-noise ratio higher than SNRr's
There is overlapping, t2=t1 over time or over frequency in pulse（s）+tp（s）+ data packet length（bit）/ transmission rate（bps）, wherein
Tp be source node to the propagation delay of destination node, be then transferred to step 611；
Step 611：Network simulator computing unit calculates data packet effective impulse accounting η：η=effective impulse number/pulse
Total number is transferred to step 613 if η >=Thd, is otherwise transferred to step 612, and wherein Thd is the fixed ginseng for being preset at computing unit
Number indicates the required minimum effective impulse accounting of node received data packet；
Step 612：Network simulator crosspoint packet discard, then goes back to step 600,601 and 602；
Step 613：Network simulator crosspoint is sent to the network equipment of destination node through interface unit 1, then turns
Go back to step 600,601 and 602；
Step 614：All node labels for including in node listing are " not calculating " by network simulator computing unit, so
After be transferred to step 615；
Step 615：Whether there is also the nodes of " not calculating " in network simulator computing unit decision node list, if
It is then transferred to step 616, otherwise goes back to step 600,601 and 602；
Step 616：Network simulator computing unit takes out the node j of one " not calculating " from node listing, calculates system
The effective impulse number for counting the reception of period interior nodes j, is then transferred to step 617；
Step 617：The effective impulse number calculated is sent to node j by network simulator computing unit by receiving unit
The network equipment, and will and then go back to step 615.
Claims (10)
1. when a kind of jump/building method of frequency-hopping communication system multinode network simulated environment, there is following technical characteristic：It jumps
When/frequency-hopping communication system using by the statistical analysis to time-frequency pulse come when simulating true jump/the multinode group of frequency hopping communications
The network simulator of net environment, network simulator are connected scene driver by interface unit 2, and network simulator passes through cloth thereon
The network equipment of all nodes of 1 connected network of n interface unit of office, when building jump/frequency-hopping communication system multinode network mould
Near-ring border；The simulation of scene driver generates the movement locus of all nodes, and the position data of all nodes is sent to net in real time
Network simulator；The network simulator period receives the data packet and wave of the node location data and source node identification source of scene driver
Shape control parameter information, each data packet include spatially multiple pulses in time-frequency two-dimensional, and all pulses are in some receiving node
Locate the Two dimensional Distribution relationship of the frequency and time that present, referred to as pulse time-frequency distributions；Network simulator utilizes newest node location
Data calculate the communication distance of source node and each receiving node, and then find out the biography that each receiving node is arrived in data packet pulse
Sowing time prolongs, and the communication distance being calculated is combined using the power information in waveform control parameter, calculates each receive and saves
The signal-to-noise ratio of point received data packet pulse updates each reception section according to the propagation delay and signal-to-noise ratio for calculating data packet pulse
The pulse time-frequency distributions of point, judge whether signal-to-noise ratio >=predetermined threshold SNRr of destination node received data packet is true, if at
It is vertical, then it is assumed that it can be properly received data packet, if data packet can be properly received, the effective impulse number of statistical data packet
Mesh thinks that data packet cannot be properly received if invalid, the packet discard if it cannot be properly received data packet,
In, SNRr is the preset parameter for being preset at computing unit, indicates the required signal-to-noise ratio of node received data packet, effective impulse number
Mesh refers to signal-to-noise ratio higher than predetermined threshold SNRr and carries out the pulse number after pulse overlap screening, and wherein pulse overlap refers to multiple letters
It makes an uproar over time or over frequency to exist than the pulse higher than SNRr and overlaps phenomenon；Then according to the newest arteries and veins of the destination node network equipment
The effective impulse number for rushing time-frequency distributions statistical data packet calculates data packet effective impulse accounting η=effective arteries and veins by computing unit
It rushes number/pulse total number and is transferred to crosspoint if η >=Thd, the network that destination node is sent to through interface unit 1 is set
It is standby, it is otherwise transferred to crosspoint packet discard, wherein Thd is the preset parameter for being preset at computing unit, indicates that node receives
The required minimum effective impulse accounting of data packet；Network simulator provides access for each node and controls required pulse system
Count information, pair can with the node of direct communication provide with delay data exchange capability.
2. the building method of as described in claim 1 when jumping/frequency-hopping communication system multinode network simulated environment, feature exist
In：Network simulator includes：The interface unit of interface adaption function with the network equipment, scene driver is provided；It saves in offer source
The computing unit of the pulse statistical function of communication ability discrimination function and node between point and destination node；Reception is come from
The data packet of meshed network equipment is cached, and according to the result of calculation of computing unit, executes the data for having delay between node
The crosspoint of packet switch；For memory node position, the storage unit of power, rate, the calculating parameter of frequency patterns.
3. the building method of as described in claim 1 when jumping/frequency-hopping communication system multinode network simulated environment, feature exist
In：Scene driver sends the real time position data of all-network node to 2 period of interface unit, and interface unit 2 receives network
After the real time position of node receives, updates node location data and be put into storage unit and stored.
4. the building method of as described in claim 1 when jumping/frequency-hopping communication system multinode network simulated environment, feature exist
In：The destination node network equipment receives after the data packet that interface unit 1 transmits, and extracts data message, is sent to this section
The information source of point；After the information source of source node generates data message, the network equipment through this node is packaged into data packet, and is believing
To 1 transmission data packet of interface unit under the control of road access protocol, and provide comprising frequency patterns, transmission power, transmission rate
The waveform control parameter information of these parameters.
5. the building method of as claimed in claim 2 when jumping/frequency-hopping communication system multinode network simulated environment, feature exist
In：Data packet after reception is put into crosspoint caching by interface unit 1, and waveform control parameter is put into storage unit and is deposited
Storage, and record the time of reception t1 of data packet.
6. the building method of as described in claim 1 when jumping/frequency-hopping communication system multinode network simulated environment, feature exist
In：When jump/frequency-hopping communication system start after, the node to be received from scene driver such as interface unit 2 of network simulator
Position data, if receiving, storage list will be put into after the position data update of reception by being transferred to the interface unit 2 of network simulator
Member is stored, and is otherwise continued waiting for.
7. the building method of as described in claim 1 when jumping/frequency-hopping communication system multinode network simulated environment, feature exist
In：Computing unit is according to the propagation delay of calculating, and in conjunction with the frequency patterns information in waveform control parameter, updated data package arrives at
The pulse time-frequency distributions of each receiving node, judge destination node received data packet signal-to-noise ratio >=predetermined threshold SNRr whether at
It is vertical, if then all arriving at destination node moment t2 in data packet pulse, according to the newest pulse time-frequency distributions of destination node, system
The effective impulse number of packet is counted, otherwise it is assumed that data packet cannot be properly received.
8. the building method of as claimed in claim 7 when jumping/frequency-hopping communication system multinode network simulated environment, feature exist
In：Network simulator computing unit is when data packet pulse all arrives at destination node moment t2, by the number of destination node reception
Pulse overlap screening is carried out successively according to the whole pulses for including, and makes calculated data packet effective impulse number=data packet arteries and veins
There are the umber of pulses of pulse overlap phenomenon for punching sum-.
9. the building method of as claimed in claim 2 when jumping/frequency-hopping communication system multinode network simulated environment, feature exist
In：All node labels for including in node listing are " not calculating " by network simulator computing unit, in decision node list
Whether there is also the nodes of " not calculating ", and the node j of one " not calculating ", counting statistics period internal segment are taken out from node listing
The effective impulse number that point j is received.
10. the building method of as claimed in claim 2 when jumping/frequency-hopping communication system multinode network simulated environment, feature
It is：The computing unit period of network simulator counts the effective impulse number that each node receives, and by pulse statistical result
It is sent to corresponding meshed network equipment by interface unit 1.
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