JP4697431B2 - Radio wave monitoring apparatus and method, radio wave monitoring program - Google Patents

Description

  The present invention divides the monitoring time, the number of radio stations for each frequency channel within the monitoring frequency, the number of transmissions for each radio station, the total transmission time, and the total transmission time by the monitoring time by using the radio device identification process. The present invention relates to a radio wave monitoring apparatus and method, and a radio wave monitoring program capable of measuring a frequency channel utilization rate required by the above.

  In order to investigate whether radio waves are used efficiently, it is necessary to monitor radio waves and investigate the number of radio stations and the emission status of each radio station for each frequency channel.

Conventionally, in order to investigate the usage status of radio waves, the supervisor sets the monitoring time and the monitoring frequency, and the number of transmissions, total transmission time, and frequency channel utilization rate are obtained for each frequency from the radio signal energy within the monitoring target. ing. A technique for counting the number of wireless portable terminals is disclosed in Patent Document 3. Further, techniques for identifying a radio station are disclosed in Patent Documents 1, 2, and 4.
JP-A-8-233882 JP-A-9-211039 JP 2000-295167 A Japanese Patent Laid-Open No. 2002-26826

  However, the technique for monitoring radio waves by measuring the number of transmissions, total transmission time, and frequency channel utilization rate for each frequency cannot monitor the number of transmissions, total transmission time, and frequency channel for each radio station. Furthermore, with the technique disclosed in Patent Document 3, the number of radio stations cannot be counted for each different frequency channel.

  Furthermore, the actual situation is that no attempt has been made to use the techniques disclosed in Patent Documents 1, 2, and 4 to count the number of wireless stations or to investigate the usage status of each wireless station.

  An object of the present invention is to provide a technique for counting the number of radio stations for each frequency channel, a radio wave monitoring apparatus and method for measuring the number of transmissions for each radio station, the total transmission time, and the frequency channel utilization rate, and a radio wave monitoring program. There is.

The present invention solves the above-mentioned problems of the prior art, and the present invention counts the number of radio stations for each frequency channel, and measures the number of transmissions for each radio station, the total transmission time, and the frequency channel utilization rate for each frequency channel. This makes it possible to investigate the detailed usage situation. Specifically, since the use frequency of the wireless communication service is determined in advance, the number of users for each wireless communication service can be grasped in detail and easily by counting the number of wireless stations for each frequency channel. Further, by measuring the number of transmissions for each radio station, the total transmission time, and the frequency channel usage rate for each frequency channel, it is possible to investigate in detail the user usage mode for each radio communication service.
That is, the radio wave monitoring apparatus according to the present invention detects a communication of a radio station for each frequency channel from a wideband received signal, and acquires a launch time and an end time of each,
Based on the signal detection information from the signal detection unit, a launch frequency list creation unit that creates launch frequency list information consisting of the launch time and end time of each wireless communication for each frequency channel;
Radio that generates radio station identification information of the received signal that uniquely identifies a radio station by performing radio equipment identification processing on the received signal of the frequency channel based on signal detection information from the signal detection unit Machine specific processing section,
By associating the emission frequency list information with a radio station based on the emission frequency list information output by the emission frequency list creation unit and the radio station identification information of the received signal output from the radio device identification processing unit. A launch history creation unit that creates a launch history composed of the launch time, end time, and radio station identification information of each wireless communication for each frequency channel;
An arithmetic unit that counts the number of different radio station identification information as the number of radio stations within the monitoring time and the monitoring frequency for each frequency channel, using the emission history from the emission history creation unit as an input. It is.

Using the radio wave monitoring device according to the present invention,
A signal detection step of detecting communication of a radio station for each frequency channel from a wideband received signal, and acquiring each launch time and end time;
Based on the acquired signal detection information, a list creation step of creating emission frequency list information consisting of the launch time and end time of each wireless communication for each frequency channel;
Based on the acquired signal detection information, performing a radio identification process on the received signal of the frequency channel to generate radio station identification information of the received signal that uniquely identifies a radio station;
Based on the created emission frequency list information and the generated radio station identification information, by associating the emission frequency list information with a radio station, the launch time and end of each radio communication for each frequency channel History creation step for creating a firing history consisting of time and radio station identification information;
The radio communication is performed by executing a calculation step of counting the frequency of different radio station identification information as the number of radio stations within the monitoring time and the monitoring frequency, for each frequency channel, with the emission history created as an input. To monitor.

Moreover, the radio wave monitoring apparatus according to the present invention includes:
A signal detection unit that detects communication of a wireless station for each frequency channel from a wideband received signal, and obtains the respective launch time and end time;
Based on the signal detection information from the signal detection unit, a launch frequency list creation unit that creates launch frequency list information consisting of the launch time and end time of each wireless communication for each frequency channel;
Based on signal detection information from the signal detection unit, a radio unit identification processing unit that performs radio unit identification processing on the reception signal of the frequency channel and generates radio station identification information of the reception signal;
By associating the emission frequency list information with a radio station based on the emission frequency list information output by the emission frequency list creation unit and the radio station identification information of the received signal output from the radio device identification processing unit. A launch history creation unit that creates a launch history composed of the launch time, end time, and radio station identification information of each wireless communication for each frequency channel;
Frequency obtained by dividing the number of transmissions for each radio station, the total transmission time, and the total transmission time by the monitoring time within the monitoring time and the monitoring frequency based on the information of the emission history output from the emission history creating unit It may be constructed as a configuration having a calculation unit that measures the channel utilization rate for each frequency channel.

In the case where the radio wave monitoring apparatus according to the present invention described above monitors the communication of a wireless device,
A signal detection step of detecting communication of a radio station for each frequency channel from a wideband received signal, and acquiring each launch time and end time;
Based on the signal detection information from the signal detection unit, a list creation step of creating emission frequency list information consisting of the launch time and end time of each wireless communication for each frequency channel;
Based on the signal detection information from the signal detection unit, a generation step of performing radio identification processing on the reception signal of the frequency channel to generate radio station identification information of the reception signal;
By associating the emission frequency list information with a radio station based on the emission frequency list information output by the emission frequency list creation unit and the radio station identification information of the received signal output from the radio device identification processing unit. , A history creation step for creating a firing history comprising the launch time, end time, and radio station identification information of each wireless communication for each frequency channel;
Frequency obtained by dividing the number of transmissions for each radio station, the total transmission time, and the total transmission time by the monitoring time within the monitoring time and the monitoring frequency based on the information of the emission history output from the emission history creating unit An arithmetic step for measuring the channel utilization rate for each frequency channel is executed.

In the above configuration, the radio wave monitoring device of the present invention is constructed as hardware. However, the present invention can also be constructed as a program configuration that causes a computer that configures the radio wave monitoring device that monitors communication of a radio to execute processing. It ’s good. The radio wave monitoring program of the present invention includes:
To the computer that constitutes the radio wave monitoring device that monitors the communication of the radio,
A function of detecting communication of a radio station for each frequency channel from a wideband received signal, and acquiring each launch time and end time;
Based on the signal detection information from the signal detection unit, the function of creating emission frequency list information consisting of the launch time and end time of each wireless communication for each frequency channel;
A function of generating radio station identification information of the received signal that uniquely identifies a radio station by performing radio identification processing on the received signal of the frequency channel based on signal detection information from the signal detection unit When,
By associating the emission frequency list information with a radio station based on the emission frequency list information output by the emission frequency list creation unit and the radio station identification information of the received signal output from the radio device identification processing unit. , A function to create a launch history consisting of the launch time, end time, and radio station identification information of each wireless communication for each frequency channel;
With the launch history from the launch history creation unit as an input, a configuration is implemented in which a function for counting the number of different wireless station identification information within the monitoring time and monitoring frequency as the number of wireless stations is counted for each frequency channel.

Further, the radio wave monitoring program of the present invention includes:
To the computer that constitutes the radio wave monitoring device that monitors the communication of the radio,
A function of detecting communication of a radio station for each frequency channel from a wideband received signal, and acquiring each launch time and end time;
Based on the signal detection information from the signal detection unit, the function of creating emission frequency list information consisting of the launch time and end time of each wireless communication for each frequency channel;
Based on signal detection information from the signal detector, a function of performing radio identification processing on the reception signal of the frequency channel to generate radio station identification information of the reception signal;
By associating the emission frequency list information with a radio station based on the emission frequency list information output by the emission frequency list creation unit and the radio station identification information of the received signal output from the radio device identification processing unit. , A function to create a launch history consisting of the launch time, end time, and radio station identification information of each wireless communication for each frequency channel;
Frequency obtained by dividing the number of transmissions for each radio station, the total transmission time, and the total transmission time by the monitoring time within the monitoring time and the monitoring frequency based on the information of the emission history output from the emission history creating unit It may be constructed as a configuration for executing the function of measuring the channel utilization rate for each frequency channel.

  As described above, according to the present invention, since the received signal is classified for each frequency channel by using the radio device identification process, the number of radio stations can be investigated from the received signal for each frequency channel. . In addition, since the radio frequency identification process is used to create the emission history for each radio station by associating the emission frequency list with the radio, the frequency of transmission, the total transmission time, and the frequency channel utilization rate for each radio station It can be investigated every time.

  Furthermore, the detailed usage situation can be investigated by counting the number of radio stations for each frequency channel, and measuring the number of transmissions for each radio station, the total transmission time, and the frequency channel usage rate for each frequency channel. . Specifically, since the use frequency of the wireless communication service is determined in advance, the number of users for each wireless communication service can be grasped in detail and easily by counting the number of wireless stations for each frequency channel. Furthermore, by measuring the number of transmissions for each radio station, the total transmission time, and the frequency channel usage rate for each frequency channel, it is possible to investigate in detail the usage mode of the user for each radio communication service.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
The radio wave monitoring apparatus 1 according to the embodiment of the present invention shown in FIG. 1 is combined with a receiver 3 that converts a radio wave received by an antenna 2 into an intermediate frequency. The radio wave monitoring apparatus 1 includes an A / D converter 4, an FFT 5, a signal detection unit 6, a firing frequency list creation unit 7, a buffer 8, a tuning unit 9, a radio device identification processing unit 10, and a launching unit. A history creating unit 11, a wireless station counting unit 12, and a usage status measuring unit 13 are included.

  The A / D converter 4 has a function of converting the intermediate frequency signal frequency-converted by the receiver 3 into a digital complex envelope signal. The FFT 5 has a function of performing discrete Fourier transform processing at a constant time interval on the digital complex envelope signal converted by the A / D converter 4 to generate a time-series spectrum, that is, a spectrogram. Yes.

  The signal detector 6 analyzes the information of the spectrogram P (see FIG. 3) output from the FFT 5 and detects the communication of the radio station for each frequency channel from the wideband received signal received by the receiver 3, It has a function to acquire my launch time and end time.

  The emission frequency list creation unit 7 has a function of creating emission frequency list information including a launch time and an end time of each wireless communication for each frequency channel based on the signal detection information from the signal detection unit 6. Yes. An example of the emission frequency list information L1 is shown in FIG.

  The buffer 8 has a function of accumulating the digital complex envelope signal converted by the A / D converter 4 for a predetermined time.

  The tuning unit 9 receives the frequency channel and the emission time from the signal detection unit 6 and acquires an accumulated digital complex envelope signal corresponding to the emission time from the buffer 8, and also stores the accumulated digital based on the frequency channel. It has a function of performing a tuning process on the complex envelope signal and generating a tuned digital complex envelope signal tuned to the frequency channel.

  As a basic configuration, the radio identification processing unit 10 performs radio identification processing on the received signal of the frequency channel based on the signal detection information C1 (see FIG. 3) from the signal detection unit 6, and performs radio identification processing. It has a function of generating radio station identification information of the received signal that uniquely identifies a station. An example of the wireless station identification information C2 is shown in FIG.

  More specifically, the radio device identification processing unit 10 detects a frequency fluctuation that occurs when the radio wave from the radio device rises, and resembles the detected frequency fluctuation and the already measured frequency fluctuation of the radio device. It has a function to identify the radio by comparing the degrees. The radio device identification processing unit 10 obtains a frequency fluctuation based on the tuning digital complex envelope signal output from the tuning unit 9. Various methods have been developed for the wireless device identification processing unit 10 to determine frequency fluctuations, and since the feature of the present invention is not configured to detect frequency fluctuations, details thereof are omitted.

  The wireless station identification information C2 is information for uniquely identifying the specified wireless device and other wireless devices.

  The tuning unit 9 and the radio device identification processing unit 10 may be set as one set, and a plurality of sets may be provided. In this case, the plurality of tuning units 9 are set to generate respective tuned digital complex envelope signals for a plurality of wireless communications that are simultaneously generated in different frequency channels.

  The firing history creation unit 11 is based on the launch frequency list information L1 output from the launch frequency list creation unit 7 and the radio station identification information C2 of the received signal output from the radio device identification processing unit 10. By associating the emission frequency list information L1 with a radio station, each radio channel has a function of creating emission history information including an emission time, an end time, and radio station identification information of each radio communication. An example of the firing history information L2 is shown in FIG.

  The wireless station counting unit 12 receives the emission history information L2 from the emission history creating unit 11 as an input, and counts the number of different wireless station identification information within the monitoring time and the monitoring frequency as the number of wireless stations for each frequency channel. It constitutes an arithmetic unit. The number of wireless stations corresponds to the number of wireless devices.

  Based on the emission history information L2 output from the emission history creation unit 11, the usage state measurement unit 13 calculates the number of transmissions, the total transmission time, and the total transmission time for each wireless station within the monitoring time and the monitoring frequency. It constitutes a calculation unit that measures the frequency channel utilization rate obtained by dividing by the monitoring time for each frequency channel. More specifically, the usage status measurement unit 13 receives the emission history output from the emission history creation unit 11 as an input, and counts the number of transmissions for each radio station for each frequency channel based on the emission history. A function that measures the total transmission time, which is the sum of the transmission times for each radio station, with the difference between the launch time and end time as the transmission time, and the frequency channel usage rate obtained by dividing the total transmission time for each radio station by the monitoring time It has a function to measure.

  Next, a method for performing radio wave monitoring using the radio wave monitoring apparatus according to the embodiment of the present invention will be described with reference to FIGS.

  In FIG. 1, when a broadband communication radio wave is received by the antenna 2, the broadband received signal is input to the receiver 3. When the wideband reception signal from the antenna 2 is input, the receiver 3 performs frequency conversion on the wideband reception signal and outputs an intermediate frequency signal.

  In step 1 of FIG. 2, when the A / D converter 4 receives the intermediate frequency signal from the receiver 3, the A / D converter 4 converts the intermediate frequency signal into a digital complex envelope signal, and converts the digital complex envelope signal into the FFT 5 and the buffer 8. Output each. The buffer 8 stores a digital complex envelope signal for a certain time.

  When the processing shifts from step 1 in FIG. 2 to step S2, the FFT 5 repeats discrete Fourier transform processing in time series on the digital complex comprehensive signal received from the A / D converter 4 to obtain the digital complex comprehensive signal. Based on this, a spectrogram P (see FIG. 3) is generated, and information on the spectrogram P is output to the signal detector 6.

  When the process proceeds from step 2 to step S3 in FIG. 2, the signal detection unit 6 analyzes the spectrogram P received from the FFT 5 to detect radio communication for each frequency channel, and the emission time for each detected radio communication, Get end time.

  In step S4 of FIG. 2, the emission frequency list creation unit 7 receives the emission time and end time of each wireless communication for each frequency channel from the signal detection unit 6, and creates the emission frequency list L1 (see FIG. 3).

  Step 5 in FIG. 2 is performed in parallel with step 4, and the tuning unit 9 receives the frequency channel and the emission time from the signal detection unit 6 in parallel with the processing of the emission frequency list creation unit 7, and the buffer 8 To obtain a stored digital complex envelope signal corresponding to the launch time, perform a tuning process on the stored digital complex envelope signal based on the frequency channel, and generate a tuned digital complex envelope signal tuned to the frequency channel .

  When the process proceeds from step S5 in FIG. 2 to the next step S6, the radio device identification processing unit 10 detects a frequency fluctuation that occurs when the radio wave from the radio device rises, and has already measured the detected frequency fluctuation. The wireless device is identified by comparing the similarity with the frequency fluctuation of the wireless device. The radio device identification processing unit 10 obtains frequency fluctuation based on the tuned digital complex envelope signal output from the tuning unit 9, identifies the radio device from the similarity between the frequency fluctuation and the known frequency fluctuation, and performs radio communication with the radio device. Station identification information C2 (see FIG. 3) is generated.

  In step S7 of FIG. 2, the launch history creation unit 11 includes the launch frequency list information L1 output from the launch frequency list creation unit 7 and the radio station for each frequency channel output from the radio device identification processing unit 10. Based on the identification information C2, a launch history including the launch time and end time of each wireless communication and the radio station identification information is created for each frequency channel, and the launch history is held.

  When step S7 in FIG. 2 is completed, when the supervisor sets a time range and a frequency range for investigating the radio wave usage status and counts the number of radio stations, step S7 goes to step S8 to investigate the usage status Step S7 moves to Step S9.

  When the process proceeds to step S8 in FIG. 2, the radio station counting unit 12 receives the emission history from the emission history creation unit 11 corresponding to the time range and frequency range input by the supervisor, and is different for each frequency channel. By counting the number of radio station identification information, the number of radio stations for each frequency channel is counted.

  When the process proceeds to step S9 in FIG. 2, the utilization state measurement unit 13 receives the emission history information L2 output from the emission history creation unit 11 as an input, and based on the emission history of the radio station, for each frequency channel. In addition, the number of transmissions for each radio station, total transmission time, and frequency channel utilization are measured.

  As described above, according to the embodiment of the present invention, since the received signal is classified for each wireless device using the wireless device identification process, the number of wireless stations can be investigated from the received signal.

  Furthermore, the radio wave transmission time for each radio station can be obtained based on the emission history for each radio station created by associating the radio frequency identification process with the radio frequency identification process. It is possible to investigate the frequency occupancy rate of the.

(Embodiment 2)
Next, radio identification processing is performed using the radio identification signal transmitted by the radio itself, and the number of radio users and frequency occupancy for each radio station can be measured using the radio identification processing. The radio wave monitoring apparatus will be described as a second embodiment.

  The second embodiment according to the present invention shown in FIG. 4 is obtained by replacing the wireless device identification processing unit 10 in the embodiment of FIG. 1 with another wireless device identification processing unit 15.

  Depending on the type of radio, there is a configuration in which the radio itself automatically transmits its own radio identification signal. As this type of wireless device, for example, there is a personal wireless device. This type of personal radio always transmits a radio identification signal called ATIS.

  Therefore, as shown in FIG. 4, the second embodiment of the present invention corresponds to the wireless device that transmits the wireless device identification signal of its own station, so that instead of the wireless device identification processing unit 10 in the embodiment of FIG. Based on the signal detection information from the signal detection unit 6, a radio unit identification processing unit 15 having a function of performing radio unit identification processing on the reception signal of the frequency channel and generating radio station identification information of the reception signal Is provided.

  As described above, the radio identification process using the radio identification signal in the embodiment shown in FIG. 1 is performed on the basis of the similarity with respect to the characteristics of the frequency fluctuation that occurs at the time of communication start of the radio. The wireless device identification process using the wireless device identification signal in the embodiment is performed by recognizing the wireless device identification signal transmitted by the wireless device itself.

  Next, a method for performing radio wave monitoring using the radio wave monitoring apparatus shown in FIG. 4 will be described with reference to FIGS.

  Operations in steps S1 to S5, steps S7, S8, and S9 in the embodiment shown in FIG. 5 are the same as those in steps S1 to S5, steps S7, S8, and S9 shown in FIG. The description is omitted.

  When the process proceeds from step S5 in FIG. 5 to step S6 ′, the radio device identification processing unit 15 transmits from the radio device using the transmission signal detection notification, which is the transmission start information output from the signal detection unit 9, as a trigger. The radio identification signal is read, the radio is identified, and radio station identification information C2 (see FIG. 3) for the radio is generated.

  When step S7 in FIG. 5 is completed, when the supervisor sets a time range and a frequency range for investigating the radio wave usage status and counts the number of radio stations, step S7 goes to step S8 to investigate the usage status Step S7 moves to Step S9.

  As described above, according to the embodiment shown in FIG. 4, not only can the same effect as that of the embodiment shown in FIG. 1 be obtained, but also the case where the radio device itself transmits a radio device identification signal is dealt with. In addition, there is an advantage that the circuit configuration can be simplified.

  In the embodiment shown in FIGS. 1 and 4, the radio wave monitoring apparatus according to the embodiment of the present invention is configured as hardware, but is not limited thereto, and may be constructed as software.

As shown in FIGS. 2 and 5, the radio wave monitoring program according to the embodiment of the present invention constructed as the software has, as shown in FIGS. 2 and 5, a computer that constitutes a radio wave monitoring apparatus that monitors communication of a radio.
A function of detecting communication of a radio station for each frequency channel from a wideband received signal, and acquiring each launch time and end time;
Based on the signal detection information from the signal detection unit, the function of creating emission frequency list information consisting of the launch time and end time of each wireless communication for each frequency channel;
A function of generating radio station identification information of the received signal that uniquely identifies a radio station by performing radio equipment identification processing on the received signal of the frequency channel based on signal detection information from the signal detection unit When,
Associating the emission frequency list information with a radio station based on the emission frequency list information output from the emission frequency list creation unit and the radio station identification information of the received signal output from the radio device identification processing unit The function of creating a launch history consisting of the launch time, end time, and radio station identification information of each wireless communication for each frequency channel,
With the launch history from the launch history creation unit as an input, a configuration is implemented in which a function for counting the number of different wireless station identification information within the monitoring time and monitoring frequency as the number of wireless stations is counted for each frequency channel.

In addition, the radio wave monitoring program according to the embodiment of the present invention is provided in a computer constituting a radio wave monitoring apparatus that monitors communication of a radio.
A function of detecting communication of a radio station for each frequency channel from a wideband received signal, and acquiring each launch time and end time;
Based on the signal detection information from the signal detection unit, the function of creating emission frequency list information consisting of the launch time and end time of each wireless communication for each frequency channel;
A function of performing radio identification processing on the received signal of the frequency channel based on signal detection information from the signal detection unit, and generating radio station identification information of the received signal;
Associating the emission frequency list information with a radio station based on the emission frequency list information output by the emission frequency list creation unit and the radio station identification information of the received signal output from the radio device identification processing unit The function of creating a launch history consisting of the launch time, end time, and radio station identification information of each wireless communication for each frequency channel,
Frequency obtained by dividing the number of transmissions for each radio station, the total transmission time, and the total transmission time by the monitoring time within the monitoring time and the monitoring frequency based on the information of the emission history output from the emission history creating unit It may be constructed as a configuration for executing the function of measuring the channel utilization rate for each frequency channel.

    As described above, according to the present invention, since the received signal is classified for each frequency channel by using the radio device identification process, the number of radio stations can be investigated from the received signal for each frequency channel. . In addition, since the radio frequency identification process is used to create the emission history for each radio station by associating the emission frequency list with the radio, the frequency of transmission, the total transmission time, and the frequency channel utilization rate for each radio station It can be investigated every time.

FIG. 1 is a block diagram showing a configuration of a radio wave monitoring apparatus according to Embodiment 1 of the present invention. FIG. 2 is a flowchart for explaining the operation of the radio wave monitoring apparatus according to the first embodiment of the present invention. FIG. 3 is a diagram specifically showing the content of information generated in the embodiment of the present invention. FIG. 4 is a block diagram showing the configuration of the radio wave monitoring apparatus according to Embodiment 2 of the present invention. FIG. 3 is a flowchart for explaining the operation of the radio wave monitoring apparatus according to the second embodiment of the present invention.

Explanation of symbols

1 Radio Monitoring Device 2 Antenna 3 Receiver 4 A / D Converter 5 FFT
6 Signal detection unit 7 Emission frequency list creation unit 8 Buffer 8
9 Tuning unit 10, 14 Radio equipment specific processing unit 11 Launch history creation unit 12 Radio station counting unit 13 Usage status measurement unit

Claims (6)

A signal detection unit that detects communication of a wireless station for each frequency channel from a wideband received signal, and obtains the respective launch time and end time;
Based on the signal detection information from the signal detection unit, a launch frequency list creation unit that creates launch frequency list information consisting of the launch time and end time of each wireless communication for each frequency channel;
A radio that generates radio station identification information of the received signal that uniquely identifies a radio station by performing radio identification processing on the received signal of the frequency channel based on signal detection information from the signal detection unit A specific processing unit;
By associating the emission frequency list information with a radio station based on the emission frequency list information output by the emission frequency list creation unit and the radio station identification information of the received signal output from the radio device identification processing unit. A launch history creation unit that creates a launch history composed of the launch time, end time, and radio station identification information of each wireless communication for each frequency channel;
A radio wave characterized by having a calculation unit that counts, for each frequency channel, the number of different radio station identification information as the number of radio stations within the monitoring time and the monitoring frequency, using the emission history from the emission history creation unit as an input Monitoring device. A signal detection unit that detects communication of a wireless station for each frequency channel from a wideband received signal, and obtains the respective launch time and end time;
Based on the signal detection information from the signal detection unit, a launch frequency list creation unit that creates launch frequency list information consisting of the launch time and end time of each wireless communication for each frequency channel;
Based on the signal detection information from the signal detection unit, a radio unit identification processing unit that performs radio unit identification processing on the reception signal of the frequency channel and generates radio station identification information of the reception signal;
By associating the emission frequency list information with a radio station based on the emission frequency list information output by the emission frequency list creation unit and the radio station identification information of the received signal output from the radio device identification processing unit. A launch history creation unit that creates a launch history composed of the launch time, end time, and radio station identification information of each wireless communication for each frequency channel;
Frequency obtained by dividing the number of transmissions for each radio station, the total transmission time, and the total transmission time by the monitoring time within the monitoring time and the monitoring frequency based on the information of the emission history output from the emission history creating unit A radio wave monitoring apparatus having an arithmetic unit for measuring a channel utilization rate for each frequency channel. A signal detection step of detecting communication of a radio station for each frequency channel from a wideband received signal, and acquiring each launch time and end time;
Based on the acquired signal detection information, a list creation step of creating emission frequency list information consisting of the launch time and end time of each wireless communication for each frequency channel;
A generation step of generating radio station identification information of the received signal that uniquely identifies a radio station by performing radio identification processing on the received signal of the frequency channel based on the acquired signal detection information;
Based on the created emission frequency list information and the generated radio station identification information, by associating the emission frequency list information with a radio station, the launch time and end of each radio communication for each frequency channel History creation step for creating a firing history consisting of time and radio station identification information;
A radio wave monitoring method comprising: performing the calculation step of counting the frequency of different radio station identification information as the number of radio stations within a monitoring time and a monitoring frequency for each frequency channel using the created emission history as an input . A signal detection step of detecting communication of a radio station for each frequency channel from a wideband received signal, and acquiring each launch time and end time;
Based on the signal detection information from the signal detection unit, a list creation step of creating emission frequency list information consisting of the launch time and end time of each wireless communication for each frequency channel;
Based on the signal detection information from the signal detection unit, a generation step of performing radio identification processing on the reception signal of the frequency channel to generate radio station identification information of the reception signal;
By associating the emission frequency list information with a radio station based on the emission frequency list information output by the emission frequency list creation unit and the radio station identification information of the received signal output from the radio device identification processing unit. , A history creation step for creating a firing history comprising the launch time, end time, and radio station identification information of each wireless communication for each frequency channel;
Frequency obtained by dividing the number of transmissions for each radio station, the total transmission time, and the total transmission time by the monitoring time within the monitoring time and the monitoring frequency based on the information of the emission history output from the emission history creating unit A radio wave monitoring method characterized by executing a calculation step of measuring a channel utilization rate for each frequency channel. To the computer that constitutes the radio wave monitoring device that monitors the communication of the radio,
A function of detecting communication of a radio station for each frequency channel from a wideband received signal, and acquiring each launch time and end time;
Based on the signal detection information from the signal detection unit, the function of creating emission frequency list information consisting of the launch time and end time of each wireless communication for each frequency channel;
A function of generating radio station identification information of the received signal that uniquely identifies a radio station by performing radio identification processing on the received signal of the frequency channel based on signal detection information from the signal detection unit When,
Associating the emission frequency list information with a radio station based on the emission frequency list information output from the emission frequency list creation unit and the radio station identification information of the received signal output from the radio device identification processing unit The function of creating a launch history consisting of the launch time, end time, and radio station identification information of each wireless communication for each frequency channel,
A radio wave characterized in that, by using the emission history from the emission history creation unit as an input, a function of counting the number of different radio station identification information within the monitoring time and the monitoring frequency as the number of radio stations for each frequency channel is executed. Monitoring program. To the computer that constitutes the radio wave monitoring device that monitors the communication of the radio,
A function of detecting communication of a radio station for each frequency channel from a wideband received signal, and acquiring each launch time and end time;
Based on the signal detection information from the signal detection unit, the function of creating emission frequency list information consisting of the launch time and end time of each wireless communication for each frequency channel;
Based on signal detection information from the signal detector, a function of performing radio identification processing on the reception signal of the frequency channel to generate radio station identification information of the reception signal;
By associating the emission frequency list information with a radio station based on the emission frequency list information output by the emission frequency list creation unit and the radio station identification information of the received signal output from the radio device identification processing unit. , A function to create a launch history consisting of the launch time, end time, and radio station identification information of each wireless communication for each frequency channel;
Frequency obtained by dividing the number of transmissions for each radio station, the total transmission time, and the total transmission time by the monitoring time within the monitoring time and the monitoring frequency based on the information of the emission history output from the emission history creating unit A radio wave monitoring program that executes a function of measuring a channel utilization rate for each frequency channel.

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