JPH06230050A - Electric field strength signal temperature - Google Patents

Abstract

PURPOSE:To provide an electric field strength signal temperature compensating device by which a temperature can be compensated accurately without adding an exterior part or the like. CONSTITUTION:An electric field strength signal temperature compensating device has a temperature correction value registering part 8 in which a temperature correction value is registered to compensate a temperature and an operation processing part 10 to determine a correction output value by carrying out operation processing on an electric field strength signal to show electric field strength of a receiving radio wave on the basis of the temperature correction value extracted from the temperature correction value registering part 8 according to a detected temperature. A function of registering a result in the temperature correction value registering part 8 by carrying operation on the temperature correction value from the electric field strength signal and the detected temperature is given to the operation processing part 10, and a temperature is compensated directly by retrieval in a signal strength conversion table where the relationship between a value or a temperature of the electric field strength signal and a decibel conversion value of signal strength to be outputted at that time is converted into data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric field strength signal temperature compensator for correcting fluctuations in the value of the electric field strength signal indicating the strength of a received radio wave due to temperature changes.

[0002]

2. Description of the Related Art FIG. 12 is a block diagram showing a conventional electric field intensity signal temperature compensator. In the figure, 1 is an antenna for receiving a radio wave, and 2 is a high frequency reception amplification and detection of the radio wave received by the antenna 1 to generate an electric field strength signal indicating the electric field strength of the received radio wave. It is a receiving circuit (receiver). 3 is a direct current amplifier circuit for amplifying the electric field strength signal output from the receiving circuit 2,
Reference numeral 4 is a thermosensitive element such as a thermistor for temperature compensation of the DC amplification circuit 3. Reference numeral 5 is a power terminal to which the electric field intensity signal amplified by the DC amplification circuit 3 whose temperature is compensated by the thermosensitive element 4 is output.

Next, the operation will be described. In a receiver performing wireless communication, in order to display the tuning point, when switching between multiple antennas, the received signal strength of each antenna is compared, and further, the signal strength of the partner station is quantified. It is common practice to display the electric field strength of the received signal for the purpose of grasping the above and predicting that communication will be interrupted due to a magnetic storm in advance and taking appropriate measures.

Therefore, the radio wave received by the antenna 1 is first subjected to high frequency reception and amplification in the receiving circuit 2 and then detected, and is output as an electric field strength signal indicating the electric field strength of the received electric wave. Here, since the level of the electric field strength signal output from the receiving circuit 2 is extremely low, it is sent to the DC amplifying circuit 3 and amplified by several hundred times. Since the DC amplification circuit 3 is generally susceptible to the influence of temperature, the temperature sensitive element 4 such as the thermistor is inserted as an external component in a part of the circuit to compensate for the temperature. Has been reduced. The electric field intensity signal amplified by the temperature-compensated DC amplification circuit 3 is output from the output terminal 5 and sent to a display unit such as an S meter (not shown) to swing its needle.
Displays the electric field strength of received radio waves.

As a document describing the technique related to such a conventional electric field intensity signal temperature compensating device, there is, for example, Japanese Patent Laid-Open No. 59-64913.

[0006]

Since the conventional electric field strength signal temperature compensator is constructed as described above, the thermosensitive element 4 such as a thermistor for temperature compensation is used as an external component of the DC amplifier circuit 3. It is necessary to add it to a part, it is difficult to miniaturize, and thermistors etc. have variations in characteristics that can not be ignored, it is extremely difficult to accurately cope with such variations, and complete temperature compensation It was difficult to do.

The present invention has been made in order to solve the above problems, and an object of the present invention is to obtain an electric field intensity signal temperature compensator capable of performing accurate temperature compensation without the need for adding external parts or the like. To aim.

[0008]

According to a first aspect of the present invention, there is provided an electric field strength signal temperature compensating apparatus, wherein a temperature correction value registration section in which a temperature correction value for performing temperature compensation is registered, and a detected temperature. According to the temperature correction value registering unit, an arithmetic processing unit for arithmetically processing the electric field strength signal indicating the electric field strength of the received radio wave to determine the correction output value is provided.

The electric field intensity signal temperature compensating apparatus according to the invention of claim 2 has a function of calculating a temperature correction value from the electric field intensity signal and the detected temperature and registering it in the temperature correction value registration section. It was given to me.

Further, in the electric field strength temperature compensating apparatus according to the invention as defined in claim 3, temperature correction values by a plurality of correction patterns are registered in advance in the temperature correction value registration section and which correction pattern is used. Information to be stored in the storage unit, and the arithmetic processing unit has a function of determining the correction output value by the arithmetic processing using the temperature correction value of the correction pattern corresponding to the information stored therein. Is.

Further, in the electric field strength signal temperature compensating apparatus according to the invention described in claim 4, a plurality of temperature detecting sections having different temperature detecting patterns are prepared, and information on which of the temperature detecting sections is used is stored in the storage section. The calculation processing unit has a function of determining the correction output value by a calculation process using the temperature detected by the temperature detection unit corresponding to the information stored therein.

According to the fifth aspect of the present invention, there is provided an electric field strength signal temperature compensating apparatus, comprising: a value of an electric field strength signal indicating an electric field strength of a received radio wave; A plurality of signal strength conversion tables that correspond to data are prepared for temperature, and a calculation processing unit that determines the correction output value by searching the signal strength conversion table selected according to the detected temperature based on the electric field strength signal is provided. is there.

Further, in the electric field strength signal temperature compensating apparatus according to the invention as defined in claim 6, the decibel converted value of the signal strength to be outputted is converted into data in correspondence with the value of the electric field strength signal and the temperature at that time. A signal intensity conversion table is prepared, and an arithmetic processing unit for determining the correction output value by searching the signal intensity conversion table based on the detected temperature and the electric field intensity signal is provided.

[0014]

According to the invention described in claim 1,
Correction is performed by extracting the temperature correction value corresponding to the detected temperature from the temperature correction value registration unit in which the temperature correction value for performing temperature compensation of the electric field strength signal is registered, and calculating the electric field strength signal based on it. Determine the output value.

Further, the arithmetic processing unit in the invention of claim 2 internally calculates the temperature correction value from the electric field intensity signal and the detected temperature, and registers the temperature correction value in the temperature correction value registration unit to internally generate the temperature. Calculate and register the correction value.

The arithmetic processing unit in the third aspect of the invention selects one of a plurality of correction patterns registered in the temperature correction value registration unit in advance based on the information stored in the storage unit. The correction output value is determined by executing the arithmetic processing using the temperature correction value extracted from the temperature correction value.

Further, the arithmetic processing unit in the invention according to claim 4 selects one of the temperature detection units having different temperature detection patterns according to the information stored in the storage unit, and selects the temperature detection unit. The correction output value is determined by executing the arithmetic processing using the detected temperature.

Further, the arithmetic processing unit in the invention according to claim 5 selects one corresponding to the detected temperature from a plurality of signal intensity conversion tables prepared corresponding to the temperature, and performs the search based on the electric field intensity signal. By executing the correction, the correction output value is directly determined without separately performing temperature compensation of the electric field intensity signal.

Further, the arithmetic processing unit in the invention described in claim 6 makes the data of the value of the electric field strength signal of the received radio wave and the temperature at that time correspond to the decibel conversion value of the signal strength to be outputted at that time. By searching the converted signal strength conversion table based on the detected temperature and the electric field strength signal, the corrected output value is directly determined without separately performing temperature compensation of the electric field strength signal.

[0020]

【Example】

Example 1. Embodiment 1 of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the invention described in claims 1 and 2. In the figure, reference numeral 1 is an antenna, 2 is a receiving circuit, and 5 is an output terminal, which are the same as or equivalent to those of the related art denoted by the same reference numerals in FIG.

Numeral 6 is an A / D converter for digitizing the electric field strength signal output from the receiving circuit 2,
Reference numeral 7 is a temperature detection unit that detects the temperature. Reference numeral 8 is a temperature correction value registration unit in which a temperature correction value for temperature compensation of the electric field strength signal is registered, and 9 is a signal strength conversion table for converting the electric field strength signal proportional to the voltage value in decibels. It is a registered conversion table registration section. Reference numeral 10 indicates a digitized electric field intensity signal received from the A / D converter 6, a temperature correction value extracted from the temperature correction value registration unit 8 according to the temperature detected by the temperature detection unit 7, and a conversion table registration unit 9. Calculation processing is performed using the registered signal strength conversion table, the obtained correction output value is sent from the output terminal 5, and temperature correction is performed from the digitized electric field strength signal and the temperature detected by the temperature detection unit 7. An arithmetic processing unit that calculates a value and registers it in the temperature correction value registration unit 8.

Next, the operation will be described. Here, Fig. 2
3 is a flowchart showing a flow of processing in the arithmetic processing unit 10. The arithmetic processing unit 10 first determines whether the process to be executed is the display of the electric field strength of the received signal or the registration of the temperature correction value (step ST11). As a result, if the electric field strength is to be displayed, the temperature detected by the temperature detection unit 7 is fetched (step ST21), and the temperature correction value corresponding to the temperature is extracted from the temperature correction value registration unit 8 (step ST).
22). Next, the electric field intensity signal digitized by the A / D converter 6 is input (step ST23), and is corrected using the temperature correction value (step ST2).
4).

Here, the electric field strength signal output from the receiving circuit 2 is generally proportional to the voltage generated in the antenna 1, and when the received signal strength is displayed, it is customarily received. The decibel converted value of the electric power is used. Therefore, the arithmetic processing unit 10 uses the signal strength conversion table registered in the conversion table registration unit 9 to convert the temperature-compensated electric field strength signal from one proportional to the voltage to power decibel to obtain the input electric field level. The corrected output value is determined (step ST25).

If the temperature correction value is to be registered, the electric field intensity signal digitized by the A / D converter 6 is input (step ST31), and the temperature at that time is fetched from the temperature detecting section 7. (Step ST32), they are temporarily stored (step ST33). These processes are repeatedly executed at the required temperature, and when the completion of the process at the required temperature is detected (step ST
34), a temperature correction value is calculated based on the stored data, and the calculated temperature correction value is registered in the temperature correction value registration unit 8 (step ST35).

Here, even if the sensor used in the temperature detecting section 7 and the transistor for DC amplification have the same model name, there are variations in the temperature characteristics that cannot be ignored due to differences in manufacturing lots. Therefore, when the receiver is manufactured, or when the sensor or the transistor is replaced, the temperature correction value is registered / updated by executing the processes of steps ST31 to ST35. The temperature correction value may be registered based on the test data of the used sensor or transistor and may be registered in the temperature correction value registration unit 8 from the outside.

Example 2. Next, a second embodiment of the present invention will be described with reference to the drawings. FIG. 3 is a block diagram showing an embodiment of the invention described in claim 3, and the same parts as those in FIG. In the figure, 11 is that the temperature correction values by a plurality of correction patterns (No. 1 to No. n) tabulated in advance by hand are registered in advance, which is different from the one indicated by reference numeral 8 in FIG. It is a temperature correction value registration unit. Reference numeral 12 denotes a storage unit that stores information regarding which of the plurality of correction patterns registered in the temperature correction value registration unit 11 should be used for the temperature correction value. Further, although 13 is an arithmetic processing unit, the storage unit 12
1 is different in that the calculation process for displaying the electric field intensity is executed using the temperature correction value of the correction pattern corresponding to the information stored in FIG.

Next, the operation will be described. Here, FIG.
3 is a flowchart showing a flow of processing in the arithmetic processing unit 13. The arithmetic processing unit 13 first determines whether the process to be executed is the display of the electric field strength of the received signal or the selection of the usage pattern (step ST12). As a result, if the electric field strength is to be displayed, the temperature detected by the temperature detecting unit 7 is fetched (step ST21), and then the No. 1 to No. n registered in advance in the temperature correction value registering unit 11 are acquired. Which of the correction patterns is to be used is selected with reference to the storage unit 12 (step ST26).

Next, the temperature correction value corresponding to the detected temperature fetched in step ST21 is extracted from the selected correction pattern (step ST22), and the electric field intensity signal digitized by the A / D converter 6 is input. Then (step ST23), it is corrected using the temperature correction value (step ST24). After that, the temperature-compensated electric field strength signal is converted into decibels using the signal strength conversion table registered in the conversion table registration unit 9, and the corrected output value of the input electric field level is determined (step ST25).

If the usage pattern is to be selected, the temperature at that time is fetched from the temperature detecting section 7 (step ST32), and the electric field intensity signal digitized by the A / D converter 6 is input (step ST32). ST31), they are temporarily stored (step ST33). These processes are repeatedly executed for the required temperature, and when the completion of the process for the required temperature is detected (step S
T34), a temperature correction value is calculated based on the stored data (step ST36), and based on the temperature correction value, which correction pattern registered in the temperature correction value registration unit 8 is used is determined, and the information is stored. Is stored in the storage unit 12 (step ST37).

The routine from step ST32 to step ST37 is executed in a temperature-controlled room where the current temperature is known when the receiver is adjusted in a factory or the like. is there. Therefore, it is known what kind of signal strength value should be displayed for a constant high frequency input, and the optimum correction pattern for displaying the value of the true signal strength of the received radio wave is set in the temperature correction value registration unit. It is easy to select from the correction patterns registered in 11.

Example 3. Next, a third embodiment of the present invention will be described with reference to the drawings. FIG. 5 is a block diagram showing an embodiment of the invention described in claim 4, and the same portions as those in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted. In the figure, 14 is a plurality of temperature detection parts having different temperature detection patterns,
Reference numeral 15 is a reference temperature detection unit, and 16 is a storage unit that stores information indicating which of the temperature detection units 14 is to be used. Reference numeral 17 denotes an arithmetic processing unit different from that indicated by reference numeral 10 in FIG. 1 in that the arithmetic processing is executed using the temperature detected by the temperature detecting unit 14 corresponding to the information stored in the storage unit 16. is there.

Next, the operation will be described. Here, FIG.
3 is a flowchart showing a flow of processing in the arithmetic processing unit 17. The arithmetic processing unit 17 first determines whether the process to be executed is the display of the electric field strength of the received signal or the selection of the operating temperature detecting unit (step ST13). As a result, if the electric field strength is to be displayed, the electric field strength signal digitized by the A / D converter 6 is input (step ST2).
3) Then, which of the No. 1 to No. n temperature detecting units 14 is to be used is selected with reference to the information in the storage unit 16 (step ST27).

Next, the temperature correction value corresponding to the temperature detected by the selected temperature detection unit 14 is extracted from the temperature correction value registration unit 8, and the digitized electric field intensity signal is extracted using the temperature correction value registration unit 8. It is corrected (step ST24). Then, using the signal strength conversion table registered in the conversion table registration unit 9, decibel conversion of the temperature-compensated electric field strength signal is performed, and the correction output value of the input electric field level is determined (step ST25).

If the operating temperature detecting section is to be selected, the digitized electric field strength signal is input by the A / D converter 6 (step ST31), and the temperature at that time is used as a reference for the temperature detecting section 15. Capture more (Step S
T32), and temporarily store them (step ST3)
3). When these processes are repeatedly executed for the required temperature and it is detected that the process for the required temperature has been completed (step ST34), the one of the plurality of temperature detecting units 14 to be used is selected based on the stored data. The information is determined and stored in the storage unit 16 (step ST
38).

Example 4. In the third embodiment, when the temperature detecting unit 14 to be used is selected, the reference temperature detecting unit 15 detects the ambient temperature while inputting the digitized electric field strength signal at each time. However, in the case where the process is performed in a temperature-controlled room in a state where the current temperature is known, the ambient temperature is known without performing temperature detection one by one, so the embodiment 4 shown in FIG. It is possible to omit steps ST32 and ST33 in FIG. 6 as in the flowchart showing the flow of the operation. In that case, FIG.
The reference temperature detector 15 shown in FIG.

Example 5. Next, a fifth embodiment of the present invention will be described with reference to the drawings. FIG. 8 is a block diagram showing an embodiment of the invention described in claim 5. The same parts as those in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted. In the figure, 18
Is a signal strength conversion table in which the correspondence between the value of the electric field strength signal digitized by the A / D converter 6 and the decibel conversion value of the signal strength to be output at that time is converted into data.
It is a conversion table registration unit in which a plurality of types (No. 1 to No. n) corresponding to temperature are prepared and registered in advance. Reference numeral 19 searches the signal strength conversion table selected by the conversion table registration unit 18 corresponding to the temperature detected by the temperature detection unit 7 based on the electric field strength signal received from the A / D converter 6 and determines the correction output value. 1 is different from that of FIG. 1 in that it is an arithmetic processing unit.

Next, the operation will be described. Here, FIG.
3 is a flowchart showing a flow of processing in the arithmetic processing unit 19. The arithmetic processing unit 19 first inputs the electric field strength signal digitized by the A / D converter 6 (step ST23). Next, the temperature detected by the temperature detection unit 7 is fetched (step ST21), and N registered in advance in the conversion table registration unit 18 based on the detected temperature.
o. Which of the signal strength conversion tables 1 to No. n to use is selected (step ST28). Next, based on the electric field strength signal digitized by the A / D converter 6,
The selected signal strength conversion table is searched to determine the correction output value for the electric field strength signal (step ST2).
9). This eliminates the need to separately correct the output value of the A / D converter 6.

Example 6. Next, a sixth embodiment of the present invention will be described with reference to the drawings. FIG. 10 is a block diagram showing an embodiment of the invention described in claim 6, and the same parts as those in FIG. In the figure, 20
Is a signal strength conversion table in which the value and temperature of the electric field strength signal digitized by the A / D converter 6 are converted into data corresponding to the decibel conversion value of the signal strength to be output at that time. It is a table registration unit. Reference numeral 21 is a signal strength conversion table registered in the conversion table registration unit 20 based on the temperature detected by the temperature detection unit 7 and the digitized electric field strength signal received from the A / D converter 6 and corrected. This is an arithmetic processing unit different from that indicated by reference numeral 10 in FIG. 1 in that the output value is determined. The arithmetic processing unit 2
1 also has a function of creating the signal strength conversion table.

Next, the operation will be described. Here, FIG.
1 is a flowchart showing a flow of processing in the arithmetic processing unit 21. The arithmetic processing unit 21 first determines whether the processing to be executed is display of the electric field strength of the received signal or creation of a signal strength conversion table (step ST14). As a result, if the electric field strength is to be displayed, the temperature detected by the temperature detection unit 7 is fetched (step ST21), and the A / D converter 6 is used.
The digitized electric field intensity signal is input at (step ST23). Next, using the temperature detected by the temperature detection unit 7 and the digitized electric field strength signal from the A / D converter 6, a search is made for the signal strength conversion table registered in the conversion table registration unit 20, The corrected output value of the electric field strength signal is determined (step ST30).

If a signal strength conversion table is to be created, the temperature at that time is first fetched from the temperature detecting section 7 (step ST32), and then the electric field strength signal digitized by the A / D converter 6 is input. Then (step S
(T31), the temperature and the value of the electric field strength signal are temporarily stored (step ST33). These processes are repeatedly executed for the required input signal level, and when it is detected that the process for the required input signal level is completed (step ST39), the above processes are repeatedly executed for the required temperature while changing the temperature. . When it is detected that the processing for the required temperature is completed (step ST3
4) Based on the temporarily stored data, the value of the electric field strength signal indicating the electric field strength of the received radio wave digitized by the A / D converter 6 and the decibel converted value of the signal strength to be output at that time. A signal strength conversion table is created for each temperature and registered in the conversion table registration unit 20 (step ST40). The above step ST32
The processes from ST34 to ST34 are not performed for all temperatures and input signal levels, but the interpolation process or the like can be used for more efficient processing.

[0041]

As described above, according to the invention described in claim 1, the temperature correction value for performing temperature compensation is registered in the temperature correction value registration unit, and the temperature correction value registration unit Since the electric field strength signal is calculated based on the temperature correction value extracted according to the above, and the correction output value is determined, no external parts are required and adjustment is easy and accurate temperature compensation is possible. There is an effect that the electric field intensity signal temperature compensating device can be obtained.

Further, according to the second aspect of the invention, the arithmetic processing unit is provided with a function of calculating a temperature correction value from the electric field intensity signal and the detected temperature and registering the calculated temperature correction value in the temperature correction value registration unit. With this configuration, it is possible to internally calculate and register the temperature correction value.

According to the third aspect of the invention, one of the plurality of correction patterns registered in advance in the temperature correction value registration section is selected based on the storage information in the storage section,
Since the calculation processing is executed by using the temperature correction value extracted therefrom to determine the correction output value, it is possible to perform highly accurate temperature compensation with the correction pattern set optimally.

According to the fourth aspect of the present invention, one of a plurality of prepared temperature detection patterns having different temperature detection patterns is selected on the basis of the storage information of the storage unit to determine the correction output value. Since the arithmetic processing of (1) is executed using the temperature detected by the temperature detecting unit, it is possible to perform temperature compensation with high accuracy by setting the temperature detection pattern optimally.

According to the invention described in claim 5, one of the plurality of signal strength conversion tables registered in advance in the conversion table registration section is selected in correspondence with the detected temperature and is searched. Since the correction output value of the electric field strength signal is obtained only by itself, there is no need to separately temperature-compensate the electric field strength signal, and the temperature correction value registration unit can be omitted.

According to the sixth aspect of the present invention, the signal strength conversion in which the electric field strength signal of the received radio wave and the temperature at that time are converted into data corresponding to the decibel conversion value of the signal strength to be output at that time Since the table is configured to be searched based on the detected temperature and the electric field strength signal, the temperature correction value registration unit can be omitted, and more accurate temperature compensation can be performed.

[Brief description of drawings]

FIG. 1 is a block diagram showing a first embodiment of the present invention.

FIG. 2 is a flowchart showing a flow of operations of the above embodiment.

FIG. 3 is a block diagram showing a second embodiment of the present invention.

FIG. 4 is a flowchart showing a flow of operations of the above embodiment.

FIG. 5 is a block diagram showing a third embodiment of the present invention.

FIG. 6 is a flowchart showing a flow of operations of the above embodiment.

FIG. 7 is a flowchart showing a flow of operations in the fourth embodiment of the present invention.

FIG. 8 is a block diagram showing a fifth embodiment of the present invention.

FIG. 9 is a flowchart showing a flow of operations of the above embodiment.

FIG. 10 is a block diagram showing a sixth embodiment of the present invention.

FIG. 11 is a flowchart showing a flow of operations of the above embodiment.

FIG. 12 is a block diagram showing a conventional electric field intensity signal temperature compensating apparatus.

[Explanation of symbols]

 6 A / D converter 7 Temperature detection unit 8 Temperature correction value registration unit 10 Calculation processing unit 11 Temperature correction value registration unit 12 Storage unit 13 Calculation processing unit 14 Temperature detection unit 16 Storage unit 17 Calculation processing unit 18 Conversion table registration unit 19 Calculation Processing unit 20 Conversion table registration unit 21 Calculation processing unit

Claims (6)

[Claims] 1. A temperature correction value registration unit in which a temperature correction value for performing temperature compensation of an electric field intensity signal indicating the electric field intensity of a received radio wave is registered, and the electric field intensity signal is stored in the temperature correction value registration unit. An electric field intensity signal temperature compensating device including an arithmetic processing unit that performs arithmetic processing according to the temperature correction value extracted according to the above, and determines a correction output value, and a temperature detection unit that detects the temperature. 2. The arithmetic processing unit has a function of calculating the temperature correction value from the electric field intensity signal and the temperature detected by the temperature detection unit and registering the temperature correction value in the temperature correction value registration unit. The electric field intensity signal temperature compensating device according to claim 1. 3. A temperature correction value registration unit is provided with a temperature correction value registered in advance in a plurality of correction patterns, and a storage unit for storing information indicating which of the plurality of correction patterns is to be used is provided. The operation processing unit is provided with a function of performing the operation processing by using a temperature correction value of a correction pattern corresponding to the information stored in the storage unit. Electric field strength signal temperature compensator. 4. A plurality of the temperature detection units having different temperature detection patterns are prepared, and a storage unit for storing information indicating which of the temperature detection units is used is provided, and the arithmetic processing unit is provided with the storage unit. 2. The electric field intensity signal temperature compensating device according to claim 1, wherein the temperature detecting unit corresponding to the information stored in the storage unit has a function of performing the arithmetic processing by using the temperature detected by the temperature detecting unit. 5. A plurality of signal intensities prepared for data corresponding to temperature by converting the correspondence between the value of the electric field intensity signal indicating the electric field intensity of the received radio wave and the decibel conversion value of the signal intensity to be output at that time. A conversion table registration unit in which a conversion table is registered, a temperature detection unit for detecting the temperature, and the signal strength conversion table corresponding to the temperature detected by the temperature detection unit are selected, and based on the electric field strength signal. An electric field strength signal temperature compensating device comprising: an arithmetic processing unit for retrieving the signal strength conversion table and determining a correction output value. 6. A signal strength conversion table in which data is obtained by correlating the value of the electric field strength signal indicating the electric field strength of the received radio wave and the temperature at that time with the decibel conversion value of the signal strength to be output at that time is registered. A conversion table registration unit, a temperature detection unit that detects the temperature, a signal strength conversion table is searched based on the temperature detected by the temperature detection unit and the electric field strength signal, and a correction output value is determined. An electric field intensity signal temperature compensating apparatus including an arithmetic processing unit.