JPH05307077A - Receiver device - Google Patents

Abstract

PURPOSE:To provide a receiver device which can calculate the spectral information and time-base information simultaneously. CONSTITUTION:The fed electromagnetic waves are delayed by a delay element 21, and meantime, signal reception and detection of the electromagnetic waves are conducted with the frequency decided on the basis of the spectral analyzing result of the signal which a compressive receiver 101 receives, detects, and outputs, and the obtained output signal is fed to the time-base analyzing process to be executed in synchronization with the spectral analyzing process in conformity to the time signal given from a timer. This allows separating a plurality of simultaneously incoming signals and calculating the applicable piece of spectral information and further a receiver device which can calculate the time-based axis information for individual signals can be obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a receiver for capturing electromagnetic waves such as radar waves over a wide band of frequencies.

[0002]

2. Description of the Related Art FIG. 4 shows, for example, "Microwave Receivers with Electronic Warfare Applications (MICROWAVE) published in 1986.
RECEIVERS WITH ELECTRONIC WARFARE APPLICATIONS) "
Eighth by James B. Tsui
It is a block diagram which shows the conventional receiver apparatus described in chapter PP278-.

In the figure, 1 is a mixer for converting a received electromagnetic wave into an intermediate frequency (hereinafter referred to as IF) signal,
Reference numeral 2 is a local oscillator (hereinafter referred to as local oscillator) that sweeps the frequency of the local signal supplied to the mixer 1 at high speed. 3 is a weighting filter for temporally shaping the IF signal from the mixer 1, and 4 is a weighting filter 3.
Is a dispersive delay line (hereinafter referred to as DDL) for temporally compressing the signal energy of the output of, and reference numeral 5 is a detector for performing the satiation detection on the output of the DDL 4.

Further, 6 is a local signal output from the local oscillator 2, and 7 is a radio frequency (hereinafter referred to as RF) signal as a received electromagnetic wave. Reference numeral 8 is an IF signal output from the mixer 1, 9 is a DDL output output from the DDL 4, and 10 is a video signal as a detection output of the detector 5.

Next, the operation will be described. The receiving device shown in the figure is usually called a compressive receiver, and the point that this compressive receiver is functionally the most different from the normal superheterodyne receiver is that the time axis is converted to a frequency axis. A spectrum analyzer, the features of which will be described below.

The local signal 6 output by the local oscillator 2 is shown in FIG.
As shown in (a), the frequency band ( _BR + _BI ) is linearly and repeatedly swept at high speed every T ₁ hours. Also, D
DL4 has a so-called dispersion delay characteristic in which the delay time required for the passage changes depending on the passage frequency.
As shown in (b), the delay time in the B _I frequency band is −
It has a characteristic inclined by T, and has a relationship shown in the following mathematical expression 1 with respect to the characteristic of the local oscillator 2 described above.

[0007]

[Equation 1]

However, B _I is an IF bandwidth, B _R is an RF bandwidth, μ is a slope (Hz / SEC), or a scan rate.

Returning now to FIG. 4, the relationship between the frequency and time of the signal in each section will be described with reference to FIG. It is assumed that the RF signal 7 is three waves of S ₁ , S ₂ , and S ₃ that are continuously arriving at the input terminal. These are shown in Figure 6 (a).
The horizontal axis represents time, as shown in (t), when the vertical axis and frequency (f), respectively over the bandwidth B _R of RF f _H,
The frequencies are f _M and f _L.

On the other hand, since the local signal 6 are fast sweep time T ₁ over the frequency band (B _R + B _I) as shown in FIG. 6 (b), IF as a result of the multiplication in the mixer 1 The signal 8 becomes a signal over the frequency band of (2B _R + B _I ) as shown in FIG.

Here, the weighting filter 3 is
This is for weighting the normal frequency characteristics to shape the temporal signal waveform, but for simplicity, here, as shown on the right side of FIG. 6C, only B _I (IF pass band) is passed. , A bandpass filter having a rectangular frequency characteristic that blocks the other bands is used. The weighting filter 3 removes the signals in the frequency band outside of the weighting filter 3, and the signals S ₁ , S ₂ , and S ₃ are also intermittent. The dead time corresponds to the shaded area in FIG. 6A in the input signal.

Here, in order to prevent such an intermittent operation, an example in which (2B _R + B _I ) is given as an IF bandwidth has been proposed, but since it becomes a wide band, the next DDL 4 is Manufacturing becomes difficult.

The output of the weighting filter 3 is then input to the DDL 4. Since the DDL 4 has a dispersion delay characteristic in the band of B _I , the signal energy of the output of the weighting filter 3 which has the width of T in time is accumulated at one point at the time when the phase combining is performed. Focused, signals are compressed in time and build up.

Therefore, the DDL output 9 output from the DDL 4 has the relationship between the amplitude and the frequency shown in FIGS. 6 (d) and 6 (e). Here, there is no time relationship that the signals S ₁ , S ₂ , and S ₃ have respectively at the beginning, and the time relationship of the signals output instead means the frequencies (f _H , f _M , and f _L ). become. That is, an operation of converting the frequency axis into the time axis (generally called chirp conversion) is performed.

Therefore, the video signal 10 in which only the amplitude component is extracted by the detector 5 has an impulse shape as shown in FIG. 6 (f), and the signals S ₁ , S ₂ , S ₃ are sequentially generated in each cycle of 1 / T _1. It is output in time series.

In order to make the above description easier to understand, FIG. 7 shows a conceptual waveform. FIG. 7 is a three-dimensional image of the amplitude-frequency-time of the signal waveform of each part when the continuous signal A and the short pulse signal B arrive as the RF signal 7.

Since the input signal A is a continuous signal, the temporal compression is large and the output amplitude is high and sharp.
On the other hand, the signal is divided every local sweep cycle. Further, since the input signal B is a short-time pulse signal, there is little temporal compression and the output amplitude does not accumulate so much.

To put it briefly, the phenomenon which becomes like this is the Fourier transform. From the above, the compressive receiver can be regarded as a spectrum analyzer. From the above, it can be said that the compressive receiver is an excellent receiver for measuring the carrier frequency, the spectrum width, etc. of the input RF signal 7.

A point to be noted here is that the output time of the detection output of the signal B is independent of the signal arrival time as described above. That is,
The output time is replaced by the proportional relationship with the input frequency.

The above-mentioned chirp conversion is described in detail in, for example, Chapter 4 Application to signal processing (pp207) of "Surface acoustic wave engineering" edited by the Institute of Electronics and Communication Engineers.

[0021]

Since the conventional receiver is constructed as described above, the presence or absence of an incoming signal can be known each time the local signal 6 is swept by the local oscillator 2, but an accurate signal within the sweep can be obtained. There is a problem that the pulse width and arrival time cannot be measured, and it is unsuitable for detection of radar signals and the like in which accurate measurement of the pulse width and its repetition time interval is an important factor.

The present invention has been made to solve the above problems, and even when a plurality of signals arrive at the same time, it is possible to separate them and measure their respective spectra. Moreover, it is an object of the present invention to obtain a receiving device capable of accurately measuring the arrival time of each signal.

[0023]

According to a first aspect of the present invention, there is provided a receiving apparatus including a delay element having a pass band equal to or greater than that of a compressive receiver, and a spectrum of an output signal of the compressive receiver. Time for synchronizing the narrow band receiver that performs reception detection of the electromagnetic wave input at the frequency determined based on the analysis processing result, and the spectrum analysis processing and the time axis analysis processing of the output of the narrow band receiver. A timer for generating a signal is provided.

Further, a receiving apparatus according to a second aspect of the present invention prepares a plurality of the narrow band receivers, each of which is determined based on a spectrum analysis processing result of different output signals of the compressive receiver. Reception detection is performed at a frequency.

Further, the receiving device according to the invention described in claim 3 is provided with a spectrum memory for storing a spectrum analysis processing result of a predetermined output signal from the compressive receiver, and a spectrum from the narrow band receiver is provided. Reception detection is performed at a frequency determined based on the contents of the memory.

[0026]

In the narrow band receiver according to the first aspect of the present invention, the electromagnetic wave input is delayed by the built-in delay element, and during this time, the result of spectrum analysis processing of the signal received and detected by the compressive receiver is output. By performing the reception detection of the delayed electromagnetic wave by the frequency determined based on the output signal, by supplying the output signal to the time axis analysis processing executed in synchronization with the spectrum analysis processing according to the time signal from the timer. In addition, it is possible to separate a plurality of signals that arrive at the same time and measure their respective spectra, thereby realizing a receiving apparatus that can measure an accurate arrival time of each signal.

Further, the narrow band receiver according to the invention described in claim 2 is determined based on the result of spectrum analysis processing of different output signals of the compressive receiver in each of the prepared narrow band receivers. By performing reception detection by frequency, it is possible to realize a reception device that can accurately measure the arrival time of each of a plurality of signals.

Further, the spectrum memory according to the invention described in claim 3 stores the spectrum analysis processing result of a predetermined output signal of the compressive receiver, and determines the frequency at which the narrow band receiver performs its reception detection. By supplying it as the information for this, it is possible to realize a receiving apparatus that can output only the spectrum information as many as the number of incoming signals.

[0029]

【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 claim 1. In the figure, 101 is a compressive receiver having the internal configuration shown in FIG. 4, 102 is an analysis processing of a video signal which is an output signal of the compressive receiver 101, and carrier frequency and spectrum width as spectrum information. It is a spectrum analysis processor for calculating

Reference numeral 103 is a timer for generating a time signal, 104 is a switch circuit for turning on / off a video signal from the compressive receiver 101 to the spectrum analysis processor 102, and 105 is a switch control for controlling this switch circuit 104. Circuit.

Reference numeral 201 denotes the spectrum analysis processor 102.
RF signal, which is an electromagnetic wave input at a frequency determined by a signal based on the analysis processing result of, is received and detected,
It is a narrowband receiver using a narrowband synchronous superheterodyne receiver. Reference numeral 202 denotes a time axis analysis processor that analyzes the video signal which is the output signal of the narrow band receiver 201 and calculates the pulse width, the time of arrival of the pulse, etc. as the time axis information.

In the narrow band receiver 201, 21 is a wide band delay line as a delay element having a pass band equal to or larger than that of the compressive receiver 101, and 22 is an IF signal from an RF signal. It is a mixer to convert. Reference numeral 23 is a local oscillator that generates a local signal having a frequency determined by a signal based on the analysis processing result of the spectrum analysis processor 102 and supplies the local signal to the mixer 22.

Reference numeral 24 is an IF band pass filter for removing the components other than the IF band from the IF signal output from the mixer 22, and 25 is the saturate detection of the output of this IF band pass filter 24, which is used as a video signal. It is a detector that outputs.

Reference numeral 7 is an input RF signal, and 10 is a video signal output from the complex receiver 101, which is equivalent to the conventional ones. Reference numeral 11 is a control signal sent from the spectrum analysis processor 102 to the local oscillator 23 of the narrow band receiver 201, 12 is a time signal generated by the timer 103, and 13 is a spectrum analysis processor 102.
The spectrum completion timing is sent to the switch control circuit 105, and 14 is the time axis completion timing sent from the time axis analysis processor 202 to the switch control circuit 105.

Next, the operation will be described. Here, the narrow band receiver 201 is basically a development of the super heterodyne receiver, and its input portion has a bandwidth equal to or greater than the reception bandwidth of the compressive receiver 101. A wideband delay line 21 is arranged.

The role of this delay line is that when the RF signal 7 arrives at the input terminal, the video signal 10 is output from the compressive receiver 101, and the spectrum analysis processor 102.
, The carrier frequency which is the spectrum information is calculated as a digital output, and the control signal 11 based on the calculated carrier frequency is used to generate the local oscillator 2 in the narrow band receiver 201.
This is for keeping the incoming RF signal 7 in the delay line 21 during the period required for a series of operations until the tuning of 3 is performed.

Therefore, the delay line 21 shown in FIG.
As described in (a), a distributed delay line whose frequency and delay time are inclined may be used because the time at which reception is intermittent changes in proportion to the frequency of the incoming signal. A fixed delay line whose delay time is constant with respect to frequency may be used.

Now, the operation of the spectrum analysis processor 102 will be described. Compressive receiver 101
The video output 10 output from FIG. 6 (f) or FIG.
As described above, for each T ₁ period, only T time is passed from f _H to f
Pulse-like waveform signals corresponding to frequencies up to _L are sequentially output in time series. Therefore, the spectrum analysis processor 102 performs the same temporal analysis processing as the time axis analysis processor 202 for calculating the pulse width, arrival time, etc. for a normal pulse signal.

Specifically, the pulsed video signal 10
When the time width of is measured, it corresponds to the spectrum width, and the time located at the center of the width corresponds to the carrier frequency. Further, the spectrum amplitude can be obtained by measuring the amplitude at that time. Spectral information is output by using them as digital numerical values. The spectral information includes carrier frequency and spectral width of the incoming signal, T
Including the frame number or the like indicating the number of sweeps per _hour.

Since the carrier frequency of the incoming RF signal 7 is known from the spectrum information in this way, it is possible to tune the local oscillator 23 via the control signal 11 so that the narrow band receiver 201 captures this signal. Is. Therefore, if the RF signal 7 arriving from the delay line 21 is output after the tuning by the local oscillator 23 is completed, only the signal can be selectively received by the narrow band receiver 201.

In this series of processes, the time during which the delay line 21 waits (or delays) a signal is about 10 μsec.
This delay line 21 can be easily manufactured before and after using the manufacturing technique of the surface acoustic wave device and the like.

The narrow band receiver 201 is an ordinary super-heterodyne receiver except for the delay line 21, and it receives only the incoming signal due to its good signal selectivity.

For example, when _three signals S _{1 to} S ₃ arrive at the same time as shown in FIG. 6 (in the figure, they are shown as continuous signals for simplification, but in reality, there are many pulse signals), the compressive As the video signal 10, the S 101 signal is first output from the receiver 101 as shown in FIG. 6F (the S ₂ and S ₃ signals are subsequently output), and the spectrum analysis processor 102 outputs the S ₁ signal. The carrier frequency f _H is calculated by the method described above.

After that, the control signal 11 is immediately tuned to the local oscillator 23 by a narrow band, but since the signals S _{1 to} S ₃ 3 waves originally arrived at the same time, the delay line 21 also outputs these 3 waves. Therefore, although the three IF signals are present even after the frequency conversion by the mixer 22, only S _{1 of} the signal tuned for the purpose of reception originally passes through the IF bandpass filter 24.

The IF bandpass filter 24 is configured so that the frequency band of the mixer 22 is converted to I near the center frequency of the IF.
It is set that only the signal S ₁ in which the F signal is present enters and passes through the pass band, and the remaining S ₂ and S ₃ are out of the band and are blocked.

As described above, the IF bandpass filter 24 has a sufficiently narrow band (several MHz to several tens of MHz) as compared with the reception bandwidth of the compressive receiver 101, and a plurality of signals arrive at the same time. However, it is necessary to pass only one of the waves and remove the other signals.

The IF band pass filter 24 has a fixed pass band and allows only the vicinity of the center of the IF frequency of the narrow band receiver 201 to pass. However, when viewed from the input terminal side where the RF signal 7 is input, the RF signal 7 is input. It can be understood that the tuning of the local oscillator 23 can be changed according to the frequency of, so that the entire reception bandwidth of the compressive receiver 101 can be covered.

As described above, in the IF bandpass filter 42, only the signal component of S ₁ is selected, and the detector 25
Then, if this S ₁ signal is subjected to the saturating line detection, this pulse waveform can be observed as a video signal. The time-axis analysis processor 202 can obtain time-axis information from this video signal in the same manner as in the case of the spectrum analysis processor 102. Specifically, the pulse width is measured by measuring the temporal width of the video signal, and the arrival time (TOA: Time o) of the signal is determined by the rising time of the video signal.
f Arrival) is known.

As described above, since the spectrum analysis processor 102 and the time axis analysis processor 202 both measure time,
Accurate time data by the timer 103 is the time signal 1
Transmitted by two. This temporal synchronization is important for achieving agreement between the two, and each output result (spectral information and time axis information) is finally put together as data for one signal.

Next, the functions of the switch circuit 104 and the switch control circuit 105 will be described. In the series of operations described above, the process until the spectrum information and the time axis information of S ₁ are obtained when the signals of three waves S _{1 to} S ₃ arrive at the same time has been described. However, after the S ₁ signal video shown in FIG. 6F, the S ₂ and S ₃ signal videos are also output subsequently.

Therefore, when this signal is continuously input to the spectrum analysis processor 102, the respective carrier frequencies are calculated and the narrow band receiver 201 is controlled so as to be tuned and received at the frequencies f _M and f _L. The signal 11 is emitted.

In such a state, there is a possibility that the time axis analysis processor 202, which has been measuring the time for the S ₁ signal, is suddenly switched to the measurement of S ₂ and S _3. The possibility arises that the time measurement for the S ₁ signal is interrupted.

Therefore, it is necessary for the local oscillator 23 of the narrow band receiver 201 not to change its tuning frequency while the measurement is continued for the signal of S ₁ . Therefore, in the configuration shown in FIG. 1, the signal S having the high frequency f _H is
₁ has priority.

That is, first, when the spectrum information of the signal S ₁ is output, the spectrum completion timing 13 indicating that the information output is completed is the spectrum analysis processor 102.
Is issued to the switch control circuit 105, and on the basis of this, the switch control circuit 105 prohibits the switch circuit 104 from inputting the next S ₂ and S ₃ video signals 10 into the spectrum analysis processor 102. In order to do so, the "ON" state shown in FIG. 1 is switched to the "OFF" state. Therefore, the narrow band receiver 201 can maintain the signal receiving state of S ₁ .

After that, the time axis completion timing 1 that the output of the time axis information from the time axis analysis processor 202 is completed
When a 4 is issued to the switch control circuit 105, the switch control circuit 105 returns the switch circuit 104 to the "ON" state for the next spectrum analysis process.

Since the signals S _{1 to} S _{3 in} FIG. 6 have been described as if they were continuous signals, it is difficult to understand the above contents, but in reality, the radar signal or the like which is the target is a pulse signal. Therefore, there are few situations in which only the signal can be permanently received due to the arrival of the continuous signal.

In order to avoid such a result, for a signal having a pulse width longer than a certain level, the switch circuit 104 is synchronized with the output of the video signal 10 of the signal based on the result of the time axis information. Alternatively, a method of intermittently turning off only the signal to remove it may be considered.

In the above description, the case where only the spectrum information and the time axis information of only the S ₁ signal can be obtained when the signals S _{1 to} S ₃ arrive in the configuration shown in FIG. It is possible to compensate for the lack of time axis information possessed by.

As for the narrow band receiver 201, the CUEING receiver (1
Although a similar structure is shown in Chapter 0.4, PP 385), this structure itself is not new and has been considered for a long time. However, by combining these in order to complement the functions that the compressive receiver 101 does not have, and operating them in synchronization with the timer 103,
Various information that a signal has can be measured at the same time.

Example 2. In the above embodiment, S _{1 to} S
₃ is shown an example that can be accurately measured time axis by S ₁ signal at the incoming, S ₁ to S ₃ as compressive receiver
Simultaneous multiple signal separation capability that can output each individually has not been utilized. FIG. 2 is a block diagram showing an embodiment of the invention described in claim 2 which can be established.

In the illustrated embodiment, the spectrum analysis processors 102a and 102b and the time axis analysis processors 202a and 2b are used.
02b and narrow band receivers 201a and 201b are provided for each of two series, and each spectrum analysis processor 1
02a and 102b are selectively connected to the compressive receiver 101 by a single-pole double-throw switch circuit 104a.

Next, the operation will be described. Now, the switch circuit 104a is in the state shown in FIG. 2, and the video signal 10 from the compressive receiver 101 is connected to the spectrum analysis processor 102a. Therefore, when the signals S _{1 to} S ₃ shown in FIG. 6 arrive, the spectrum analysis processor 102a outputs the spectrum information for the signal S ₁ as the spectrum information 1, and then the time is passed via the narrow band receiver 201a. From axis analysis processor 202a, S ₁
The time base information for the signal is output. Figure 1 up to here
The operation is the same as in the case of.

At this time, the spectrum analysis processor 102a outputs the spectrum completion timing 13a to the switch control circuit 105a. Upon receiving the spectrum completion timing 13a, the switch control circuit 105a issues an instruction to the switch circuit 104a to switch to the contact 2 side. Here, a video signal corresponding to the S ₂ signal is output to the video signal 10 output next from the compressive receiver 101, but the video signal 10 is transmitted via the switch circuit 104a to the spectrum analysis processor 102b.
Sent to.

The subsequent operation is the same as in the above-mentioned case, and S
Spectral information for _two signals is output from the spectral analysis processor 102b, the time axis information of S ₂ signal is obtained from the time base analyzer processor 202b.

In the configuration of FIG. 2, only the information for the two signals S ₁ and S ₂ can be obtained, but if circuits are added in the same manner, a large number of signals can be dealt with at the same time. Is clear.

Example 3. Further, FIG. 3 is a block diagram showing an embodiment of the invention described in claim 3, in which spectrum information corresponding to the number of incoming signals can be output. In the figure, reference numeral 106 stores a spectrum analysis processing result of a predetermined output signal of the compressive receiver 101 analyzed by the spectrum information analysis processor 102, and a control signal 11 for determining a frequency for performing reception detection thereof. Is a spectrum memory supplied to the local oscillator 23 of the narrow band receiver 201 as.

Next, the operation will be described. In this case, the video signal 10 from the compressive receiver is successively sent to the spectrum analysis processor 102, and the spectrum information is calculated. That is, when the signals S _{1 to} S ₃ arrive, the spectrum information for the S _{1 to} S ₃ signals is sequentially calculated and output in time series.

At the same time, the analysis processing result is also sent to the spectrum memory 106 and temporarily stored therein. Here, even if this spectrum memory 106 is a first-come-first-served memory,
Further, since there is spectrum amplitude data as one of the spectrum information, a peak detection memory which stores the spectrum information by selecting the maximum spectrum amplitude may be used.

Therefore, the signal stored in the spectrum memory 106 after the time T is one wave, and the narrow band receiver 201 is tuned only to this signal.
The time-axis information from the time-axis analysis processor 202 is obtained for only one wave.

[0070]

As described above, according to the first aspect of the present invention, the spectrum of the signal that is received and detected by the compressive receiver is delayed by delaying the input electromagnetic wave using the delay element. A configuration in which reception detection of the electromagnetic wave is performed at a frequency determined based on the analysis processing result, and an output signal thereof is supplied to a time axis analysis processing executed in synchronization with the spectrum analysis processing according to a time signal from a timer. Therefore, there is an effect that a receiving device can be obtained in which spectral information of a plurality of signals that have arrived at the same time can be separately obtained, and further accurate time axis information can be obtained for each signal.

Further, according to the invention described in claim 2, in each of the plurality of prepared narrow band receivers, reception by the frequency determined based on the spectrum analysis processing result of different output signals of the compressive receiver is performed. Since the configuration is such that detection is performed, there is an effect that it is possible to obtain a receiving device that can accurately measure the arrival time of each of a plurality of signals.

Further, according to the invention of claim 3,
Since the spectrum analysis processing result of the predetermined output signal of the compressive receiver is stored in the spectrum memory and the frequency for performing the reception detection of the narrowband receiver is determined based on the result, only the spectrum information is received. There is an effect that a receiving device capable of outputting the number of

[Brief description of drawings]

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

FIG. 2 is a block diagram showing a second embodiment of the present invention.

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

FIG. 4 is a block diagram showing a conventional receiving device.

FIG. 5 is a diagram showing the characteristics of local oscillation and DDL.

FIG. 6 is an explanatory diagram showing a time relationship of operations of a conventional receiving device.

FIG. 7 is a conceptual waveform diagram for explaining the operation of the receiving device.

[Explanation of symbols]

 101 Compressive receiver 102, 102a, 102b Spectrum analysis processor 103 Timer 106 Spectrum memory 201, 201a, 201b Narrow band receiver 202, 202a, 202b Time axis analysis processor 21, 21a, 21b Delay element (delay line)

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location G01S 7/38 8940-5J

Claims (3)

[Claims] 1. A compressive receiver that receives and detects an input electromagnetic wave and outputs the signal components in time series corresponding to each frequency, and analyzes and processes the output signal of the compressive receiver. A spectrum analysis processor for outputting spectrum information, and a delay element having a pass band equal to or more than that of the compressive receiver, and at the frequency determined based on the analysis processing result of the spectrum analysis processor. A narrow band receiver that performs reception detection of electromagnetic waves,
A time axis analysis processor for analyzing the output signal of the narrow band receiver and outputting time axis information, and a timer for generating a time signal for synchronizing the operations of the spectrum analysis processor and the time axis analysis processor. And a receiver equipped with. 2. A compressive receiver that receives and detects an input electromagnetic wave and outputs the signal component in time series corresponding to each frequency, and an analysis process of each output signal of the compressive receiver. A plurality of spectrum analysis processors for outputting the spectrum information, and a delay element provided corresponding to each of the spectrum information analysis processors and having a pass band equal to or more than that of the compressive receiver. , A narrow band receiver that performs reception detection of the electromagnetic wave at a frequency determined based on the analysis processing result of the associated spectrum analysis processor, and prepared for each of the narrow band receivers, A time-axis analysis processor for analyzing and processing the output signal of the attached narrowband receiver to output time-axis information, each of the spectrum analysis processors and each of the time-axis analysis processors A receiving device comprising: a timer that generates a time signal for synchronizing operations. 3. A compressive receiver that receives and detects an input electromagnetic wave and outputs the signal components in time series corresponding to each frequency, and analyzes and processes the output signal of the compressive receiver. A spectrum analysis processor for outputting spectrum information, a spectrum memory for storing a predetermined output signal of the spectrum information analysis processor, and a delay element having a pass band equal to or more than that of the compressive receiver, A narrowband receiver that performs reception detection of the electromagnetic wave at a frequency determined based on the analysis processing result of the spectrum analysis processor stored in the spectrum memory, and an output signal of the narrowband receiver is analyzed. And a time signal for synchronizing the operations of the spectrum analysis processor and the time axis analysis processor with the time axis analysis processor that outputs time axis information. A receiver with a live timer.