CN106507961B - A kind of continuous impulse radar and its method of work - Google Patents
A kind of continuous impulse radar and its method of workInfo
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- CN106507961B CN106507961B CN201318001899.5A CN201318001899A CN106507961B CN 106507961 B CN106507961 B CN 106507961B CN 201318001899 A CN201318001899 A CN 201318001899A CN 106507961 B CN106507961 B CN 106507961B
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Abstract
The invention discloses a kind of continuous impulse radar and its method of work, the continuous impulse radar can include：Radar transmitter, for continuously launching the direct impulse signal for setting width with transmission time interval；Radar receiver, for the part echo signal that the pulse interval between the direct impulse signal of transmitting receives target；And signal restorer, for recovering complete echo-signal based on the part echo signal.The advantage of traditional pulse radar and continuous wave radar taken into account by the continuous impulse radar of the present invention, with mean power is big and the advantage such as receive-transmit isolation height, reduces peak power, reduces detection blind area, have the advantages that inexpensive and small light.
Description
Technical field
The present invention relates to Radar Technology field, and in particular to a kind of continuous impulse radar and its method of work.
Background technology
Radar is by emission detection signal and receives the reflected signal of target and obtain target information
A kind of radio remote sensing detecting devices.In the prior art, the working system of radar mainly can be with division
For two kinds of working methods of pulse and continuous wave.
Under pulsed mode, the detection of radar (also referred to as " pulse radar ") transmitting impulse form
Signal, receives the echo-signal of target afterwards.Fig. 1 is the pulse radar work side according to prior art
Formula schematic diagram, Fig. 1 top half is the schematic diagram of the direct impulse signal of transmitting, Fig. 1 lower half
Part is the schematic diagram for receiving target echo signal.Radar launches pulse signal during t0 to t1,
The echo-signal of target is received during t2 to t3, transmitting is repeated afterwards and is received.Pulse radar
Transmitting and receive be in time successively it is separated.
Under continuous wave working method, radar (also referred to as " continuous wave radar ") transmitting continuous wave detection
Signal, at the same time receives the echo-signal of target.Fig. 2 is the continuous wave radar according to prior art
Working method schematic diagram.Fig. 2 top half is the schematic diagram of the continuous wave detection signal of transmitting, figure
2 the latter half is the schematic diagram for receiving target echo signal.It is continuous that radar starts transmitting at the t0 moment
Wave detection signal, at the same time also starts the echo-signal of reception target, transmitting and reception at the t0 moment
Process is persistently carried out.The transmitting and reception of continuous wave radar are to work simultaneously.
Under above-mentioned pulsed mode, emission detection signal and reception target echo signal are timesharing works
Make, thus transmitting-receiving between influence each other it is smaller, radar can with transmission power than larger signal,
Detection range can be with distant.However, signal can not be received during due to transmission signal, visited so existing
Ranging from lower limit, that is, detection blind area, its size determines by the pulse width of transmission signal.
In many cases, due to the requirement of search coverage, pulse width is limited, it is desirable to increase direct impulse
Peak power, so as to improve the mean power of transmission signal, causes transmitter apparatus more bulky complex.
Under above-mentioned continuous wave working method, due to continuous emission detection signal so that transmission signal
Mean power is larger, for relative pulse working method, and the peak power of its transmission signal is much smaller,
Solid-state devices, arrangement of components can be used, volume, the small light of weight is realized.However, due to
Transmitting and the work of reception signal are carried out simultaneously, and the influence between transmitting and receiving channel is relatively large.
Ensure that receiver is capable of the isolation of normal work, on the one hand requirement raising transceiver channel to reduce influence
Degree, on the other hand will also have certain limitation to the transmission signal power of emitter.In these conditions and
Under limitation, the performance of continuous wave radar is result in by certain influence, detection range is closer.
Therefore, this area exists a kind of for that can overcome the upper of traditional pulse radar and continuous wave radar
The need for stating defect or not enough New Type Radar working system.
The content of the invention
(1) technical problem to be solved
In view of this, it is a primary object of the present invention to provide a kind of continuous impulse radar and its work side
Method, to overcome the shortcomings of traditional pulse radar and continuous wave radar, meets and improves transceiver insulation to radar
Degree, reduction peak power, reduction detection blind area, low cost and small light etc. are required.
(2) technical scheme
To reach above-mentioned purpose, the invention provides a kind of continuous impulse radar, including：Radar emission
Machine, the direct impulse signal for continuously launching setting width with transmission time interval；Radar receiver,
The partial echo letter of target is received for the pulse interval between the direct impulse signal of transmitting
Number；And signal restorer, for recovering complete echo-signal based on the part echo signal.
In one embodiment of the invention, the width of the direct impulse signal be it is fixed or
It is adjustable.When the width of the direct impulse signal is 0, no emission detection pulse letter is represented
Number.The spectrum width of the direct impulse signal and the central value of spectrum width are fixed or can
Adjustment.The pulse interval is previous exomonental rear edge and next exomonental
Time between forward position, is fixed either adjustable.When the pulse interval is 0,
Represent without the echo-signal for receiving target.The transmission time interval is the direct impulse signal
Width and the pulse interval sum, and the transmission time interval is that fixation either can
Adjustment.
In one embodiment of the invention, the signal restorer includes：Acquiring unit, is used for
Obtain time window, direct impulse signal and the part echo signal for receiving target echo signal；And it is extensive
Multiple unit, for the direct impulse parameter according to setting, receive target echo signal time window and
The part echo signal of reception recovers the complete echo-signal.
In one embodiment of the invention, the recovery unit includes：First converter unit, is used
In the part echo signal is transformed into frequency domain, to obtain the first frequency-region signal；Second converter unit,
For the time window to be transformed into frequency domain, to obtain the second frequency-region signal；Computing unit, for root
According to first frequency-region signal and second frequency-region signal, the echo-signal is calculated according to the following formula
Frequency-region signal：YWhereinRepresent convolution algorithm, YP(ω) is first frequency
Domain signal, PT(ω) is second frequency-region signal, and Y (ω) is the frequency-region signal of the echo-signal；
And the 3rd converter unit, for by the frequency-region signal inverse transformation of the echo-signal to time domain, with
To the complete echo-signal.
In one embodiment of the invention, the emitter be electric vacuum tube device or solid-state devices,
Launched using concentrated form or distribution form, continuous impulse signal is launched with transmission time interval.
The receiver is received using superhet form, direct demodulation form or direct RF sampling form,
The part echo signal of target is received in pulse interval, pulse interval is launched two
Time span between individual adjacent detector pulse signal, and pulse interval be it is fixed either
It is adjustable.The signal restorer uses LSI devices, DSP devices or general meter
Calculation machine is realized.
To reach above-mentioned purpose, present invention also offers a kind of continuous impulse radar method of work, including：
Continuously launch the direct impulse signal of setting width with transmission time interval；Believe in the direct impulse of transmitting
Pulse interval between number receives the part echo signal of target；And based on the partial echo
Signal recovers complete echo-signal.
In one embodiment of the invention, the width of the direct impulse signal be it is fixed or
It is adjustable.When the width of the direct impulse signal is 0, no emission detection pulse letter is represented
Number.The spectrum width of the direct impulse signal and the central value of spectrum width are fixed or can
Adjustment.The pulse interval is previous exomonental rear edge and next exomonental
Time between forward position, is fixed either adjustable.When the pulse interval is 0,
Represent without the echo-signal for receiving target.The transmission time interval is the direct impulse signal
Width and the pulse interval sum, and the transmission time interval is that fixation either can
Adjustment.
In one embodiment of the invention, it is described to be recovered complete time based on the part echo signal
Ripple signal includes：Obtain time window, direct impulse signal and the partial target for receiving target echo signal
Echo-signal；And direct impulse parameter according to setting, receive the time window of target echo signal with
And the part echo signal received recovers the complete echo-signal.
In one embodiment of the invention, the direct impulse parameter according to setting, receive mesh
The time window of echo-signal and the part echo signal of reception is marked to recover the complete echo-signal,
Including：The part echo signal is transformed into frequency domain, to obtain the first frequency-region signal；When will be described
Between window transform to frequency domain, to obtain the second frequency-region signal；According to first frequency-region signal and described
Two frequency-region signals, calculate the frequency-region signal of the echo-signal according to the following formula：
WhereinRepresent convolution algorithm, YP(ω) is first frequency-region signal, PT(ω) is second frequency domain
Signal, and Y (ω) is the frequency-region signal of the echo-signal；And by the frequency domain of the echo-signal
Signal inverse transformation is to time domain, to obtain the complete echo-signal.
(3) beneficial effect
From above-mentioned technical proposal as can be seen that the invention has the advantages that：
(1) detectivity of radar is improved.
Continuous impulse radar and its method of work at least have following special according to an embodiment of the invention
Point：One is receiving and transmitting signal time-sharing work；Two be continuous emission detection pulse signal.
Transmitting-receiving time-sharing work, thus can as pulse work it is possible to prevente effectively from transceiver channel is interfered
The radar for making system is the same, improves peak transmitted power.
Continuous emission detection pulse signal, although can not the full-time transmitting as continuous wave radar, but
That the pulse signal quantity of transmitting is more than the individual pulse that usual pulse radar is launched, accumulation it is flat
Equal transmission power increase.
From above the characteristics of in as can be seen that can be with according to the continuous impulse system method of work of the present invention
Improve peak value or mean power can be improved；From the perspective of radar detection, detection can be increased
The detection of distance and enhancing to weak signal target signal.
Further, since using continuous impulse mode, pulse width can reduce, thus can reduce radar
Detection blind area.
In addition, by the signal of different impulse ejection different spectral scopes and spectrum width, can also increase
Plus the bandwidth of detectable signal, obtain more information.
(2) integrated level of radar is improved, small light is realized, reduces cost.
Due to similar continuous wave radar, so improving radar signal by continuous emission detection pulse signal
Mean power, thus the peak power of radar transmitted pulse signal can be reduced, radar transmitter
Solid-state devices or part can be used, thus is easier to improve the integrated level of radar, small light is realized
With the cost of reduction radar.
Brief description of the drawings
By the explanation below in conjunction with accompanying drawing, and with the more comprehensively understanding to the present invention, the present invention
Other purposes and effect will become clearer and it can be readily appreciated that wherein：
Fig. 1 is the pulse radar working method schematic diagram according to prior art；
Fig. 2 is the continuous wave radar working method schematic diagram according to prior art；
Fig. 3 is the schematic diagram of continuous impulse radar method of work according to the embodiment of the present invention；With
And
Fig. 4 is the schematic diagram of continuous impulse radar according to the embodiment of the present invention.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with specific reality
Example is applied, and referring to the drawings, the present invention is described in more detail.
The present invention use for reference the advantage of pulse and continuous wave radar there is provided a kind of continuous impulse radar and
Continuous impulse radar method of work, the mode based on transmitting and reception signal separately is at certain intervals
Continuous emission detection pulse signal, while the time interval between transmitting pulse signal receives target
Echo-signal.
Fig. 3 is the schematic diagram of continuous impulse radar method of work according to the embodiment of the present invention.Figure
3 top half is the signal of the continuous probe pulse signal of transmitting, and Fig. 3 the latter half is target
Echo-signal and the signal for receiving window, the echo-signal of where the dotted line signifies that target；Dash box is represented
To the reception window of echo-signal.
Embodiments in accordance with the present invention, it is assumed that according to the detection of the transmitting of the continuous impulse radar of the present invention
The width of pulse signal is 1 μ s；Launch the interval time between pulse, i.e. pulse interval, be
The window time of signal is received, is also 1 μ s.In an embodiment according to the present invention, between launch time
Every being width and the pulse interval sum of direct impulse signal, therefore in this example, it is used for
Continuous transmitting sets the transmission time interval of the direct impulse signal of width as 2 μ s.
As shown in figure 3, started working according to the continuous impulse radar of the present invention at the t0 moment, radar hair
Penetrate machine and launch direct impulse signal (referred to as " pulse signal ") of the width for T1, be spaced T2
(that is, pulse interval is T2, and transmission time interval is T1+T2), transmitting after time
The pulse signal that one width is T3, after the T4 times of interval, then launches the arteries and veins that a width is T5
Signal is rushed, is continuously repeated with this.At the same time, radar receiver also starts to receive target at the t0 moment
Echo-signal, skips the time T1 of transmitting pulse signal first, in the period T2 for stopping transmitting
The echo-signal of target is received, the time T3 of transmitting pulse signal is skipped again afterwards, is stopping transmitting
Period T4 in receive target echo-signal, continuously repeated with this.Under the method for work,
The process of radar emission detectable signal and reception target echo signal is separated and each occupied in time
Regular hour, in the way of receiving and dispatching alternation and continuously repeating target is detected.
As can be seen that being different from according to the continuous impulse radar of the present invention from Fig. 1, Fig. 2 and Fig. 3
Existing pulse radar, also different from continuous wave radar.Specifically, pulse radar is in transmitting pulse
After signal, target echo signal is completely received, launches and receives again afterwards；Continuous wave radar can
Receive the echo-signal of target continuous wholely while emission detection signal；But, continuous impulse
Radar is the partial echo of the pulse interval reception target between the direct impulse signal of transmitting
Signal, that is, the target echo signal of receiving portion time window.
Due to the target echo signal of continuous impulse radar receiving portion time window, according to the present invention
Continuous impulse radar method of work be that the method for recovering processing by signal recovers complete echo
Signal.For convenience, it is expressed as below：
Radar emission signal is：A
The reflection characteristic of target is：x
The reflected signal that radar is acted on after target is：
WhereinRepresent convolution algorithm.
Continuous impulse radar return signal time window is：pT
The part echo signal for the target that continuous impulse radar is received is：
yP=PT·y (2)
The reception signal of continuous impulse radar is complete equivalent to target it can be seen from formula shown above
Whole echo-signal is blocked with time window, is equivalent to the convolution of frequency domain, as follows：
Wherein, YP(ω) is and part echo signal ypCorresponding frequency-region signal, PT(ω) is and the time
Window pTCorresponding frequency-region signal, and Y (ω) is the frequency-region signal corresponding with reflected signal.
With reference to radar emission signal A characteristic and pass through pact of the formula (1) to target echo signal y
Beam, can be recovered the complete echo-signal y of target according to formula (3) by de-convolution operation by YP.
About deconvolution method can using the method such as Iterative restoration method or liftering (reference can be made to
《Solutions ofIll-Posed Problems》, the U.S. is published for 1977；《Deconvolution and signal restoring》,
National Defense Industry Press publishes for 2001).
After recovering target echo signal, it is possible to as pulse radar or continuous wave radar,
Follow-up processing work is carried out as needed.
Fig. 4 is continuous impulse radar composition schematic diagram.
Continuous impulse radar 400 can include according to an embodiment of the invention：Radar transmitter 401,
It is arranged to continuously launch with transmission time interval the direct impulse signal of setting width；Radar is received
The pulse interval that machine 402 is arranged between the direct impulse signal of transmitting receives target
Part echo signal；And, signal restorer 403 is configured for the partial echo letter
Number recover complete echo-signal.
In some embodiments in accordance with the present invention, radar transmitter (referred to as " emitter ") is used for
Transmission signal is produced, is outwards launched by antenna；Radar receiver (referred to as " receiver ") is used for
Receive the echo-signal of target；Signal restorer can then combine the direct impulse parameter of setting, receive
The time window of target echo signal and the part echo signal of reception are handled to be returned with recovering complete
Ripple signal.In addition, embodiments in accordance with the present invention, continuous impulse radar 400 can also include radar
Signal processor etc..Radar signal processor can be used for completing the other relevant signal transactings of radar
Work.
In continuous impulse radar according to an embodiment of the invention, emitter 401 can be true using electricity
Blank pipe device uses solid-state devices, can be sent out using concentrated form or using distribution form
Penetrate, continuous impulse signal can be launched with transmission time interval, the transmission time interval can basis
The concrete condition of system is adjusted or set, and the width of the continuous impulse signal is adjustable.
Embodiments in accordance with the present invention, receiver 402 can be solved using superhet form or directly
Tune form or direct RF sampling form are received, and basic demand is in pulse interval
The part echo signal of target is received, pulse interval is launched two adjacent detector pulses letter
Time span between number, and pulse interval is fixed either adjustable.
Embodiments in accordance with the present invention, signal restorer 403 can use LSI devices
Realize or realized or realized using all-purpose computer using DSP devices.Signal restorer can be with
Hardware or software resource expense required for satisfaction recovery signal transacting, so that based on the part received
Echo-signal recovers complete echo-signal.In one embodiment, signal restorer 403 can include：
Acquiring unit, is arranged to obtain the time window for echo-signal；And recovery unit, by with
Put for recovering complete echo-signal according to part echo signal and time window.The recovery unit can
With including：First converter unit, is arranged to part echo signal transforming to frequency domain, to obtain
First frequency-region signal；Second converter unit, is arranged to time window transforming to frequency domain, to obtain
Second frequency-region signal；Computing unit, is arranged to according to the first frequency-region signal and the second frequency-region signal,
The frequency-region signal of echo-signal is calculated according to the following formula：
Wherein YP(ω) is the first frequency-region signal, PT(ω) is the second frequency-region signal, and Y (ω) is echo-signal
Frequency-region signal；And the 3rd converter unit, it is arranged to the frequency-region signal contravariant of echo-signal
Time domain is changed to, to obtain complete echo-signal.
Embodiments in accordance with the present invention, for that can be according to the antenna of continuous impulse radar of the invention
Receive and dispatch the antenna either duplexer of separation.Therefore, radar transmitter 401 and radar are received
Machine 402 can have the antenna or shared antenna of separation.
Embodiments in accordance with the present invention, radar signal processor can use various forms of hardware or soft
Part is realized, it is possible to meet requirement of the radar system to the hardware or software resource of signal transacting.
Based on the continuous impulse radar shown in Fig. 4, present invention also offers a kind of continuous impulse radar work
Make method, including：
Continuously launch the direct impulse signal of setting width with transmission time interval；
Pulse interval between the direct impulse signal of transmitting receives the partial echo letter of target
Number；And
Complete echo-signal is recovered based on the part echo signal.
Wherein, the width of the direct impulse signal is fixed either adjustable.The detection
When the width of pulse signal is 0, expression does not have emission detection pulse signal.The direct impulse signal
Spectrum width and the central value of spectrum width be fixed either adjustable.The burst length
Interval is the time between previous exomonental rear edge and next exomonental forward position, is solid
Fixed is either adjustable.When the pulse interval is 0, represent without time for receiving target
Ripple signal.The transmission time interval is the width of the direct impulse signal and between the burst length
Every sum, and the transmission time interval is fixed either adjustable.
In one embodiment of the invention, it is described that complete echo is recovered based on the part echo signal
Signal includes：Obtain the time window for receiving target echo signal；And joined according to the direct impulse of setting
Count, receive the time window of target echo signal and the part echo signal of reception to recover described complete
Echo-signal.Wherein, the direct impulse parameter according to setting, receive target echo signal when
Between window and the part echo signal of reception recover the complete echo-signal, including：By the portion
Point echo-signal transforms to frequency domain, to obtain the first frequency-region signal；The time window is transformed into frequency domain,
To obtain the second frequency-region signal；According to first frequency-region signal and second frequency-region signal, according to
Following formula calculates the frequency-region signal of the echo-signal：WhereinRepresent convolution
Computing, YP(ω) is first frequency-region signal, PT(ω) is second frequency-region signal, and Y (ω) is
The frequency-region signal of the echo-signal；And by the frequency-region signal inverse transformation of the echo-signal to time domain,
To obtain the complete echo-signal.
As can be seen that according to the transmitting-receiving process of the continuous impulse radar of the present invention from above embodiment
Separate in time, the interference between receiving and transmitting signal can be greatly improved, it is possible to decrease the implementation of system is difficult
Degree.In addition, by the transmitting of multiple pulses, the mean power of system detectable signal can also be improved,
Increase detectivity.For example, it is assumed that the detection range of individual pulse is 10 kilometers, according to radar side
The calculated relationship that journey is directly proportional on the biquadratic of radar horizon to transmission power, in other conditions
In the case of constant, operating distance can just be brought up to 20 kilometers by launching 16 pulses, with
This by receiving and dispatching temporal separation, can be avoided the influence of the transmission signal docking collection of letters number simultaneously.
It should be noted that in order that embodiments of the present invention are easier to understand, above description is eliminated
It is realization known and for embodiments of the present invention for a person skilled in the art
More specifically some ins and outs being likely necessary.For example, above description is eliminated to existing
The general description of radar or radar system.It should be understood that continuous according to an embodiment of the invention
Pulse radar can also have in addition to emitter described above, receiver and signal restorer
Miscellaneous part or component that existing radar or radar system have.Described above is only to show
It is meaning property rather than restricted.
The specification for providing the present invention is in order to illustrate and describe, rather than for exhaustive or by the present invention
It is limited to disclosed form.For one of ordinary skill in the art, many modifications and changes are all
It is possible.
Particular embodiments described above, is carried out to the purpose of the present invention, technical scheme and beneficial effect
Be further described, should be understood that the specific embodiment that the foregoing is only of the invention and
, it is not intended to limit the invention, within the spirit and principles of the invention, that is done any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (4)
1. a kind of continuous impulse radar, including：
Radar transmitter, the direct impulse signal for continuously launching setting width with transmission time interval,
Started working at the t0 moment, the direct impulse signal that one width of transmitting is T1, during the T2 of interval
Between after, the direct impulse signal that one width of transmitting is T3 after the T4 times of interval, then launches one
Width is T5 direct impulse signal, is continuously repeated with this；
Radar receiver, mesh is received for the pulse interval between the direct impulse signal of transmitting
Target part echo signal, i.e., start to receive target echo signal at the t0 moment, and transmitting is skipped first and is visited
The time T1 of pulse signal is surveyed, target is received within the T2 periods for stopping emission detection pulse signal
Echo-signal, skip the time T3 of emission detection pulse signal again afterwards, stop emission detection
The echo-signal of target is received in the T4 periods of pulse signal, is continuously repeated with this；And
Signal restorer, for recovering complete echo-signal, the letter based on the part echo signal
Number restorer includes：Acquiring unit, time window, the detection arteries and veins of target echo signal are received for obtaining
Rush signal and part echo signal；Recovery unit, for the direct impulse signal parameter according to setting,
The time window of target echo signal and the part echo signal of reception is received to recover described complete time
Ripple signal.
2. continuous impulse radar according to claim 1, wherein, the recovery unit includes：
First converter unit, for the part echo signal to be transformed into frequency domain, to obtain the first frequency
Domain signal YP(ω)；
Second converter unit, for the time window to be transformed into frequency domain, to obtain the second frequency-region signal
PT(ω)；
Computing unit, for according to the first frequency-region signal YP(ω) and second frequency-region signal
PT(ω), calculates the frequency-region signal Y (ω) of the complete echo-signal according to the following formula：
WhereinRepresent convolution algorithm；And
3rd converter unit, for by frequency-region signal Y (ω) inverse transformation of the complete echo-signal then
Domain, to obtain the complete echo-signal.
3. the continuous impulse radar method of work any one of a kind of claim 1 to 2, bag
Include：
Continuously launch the direct impulse signal of setting width with transmission time interval, i.e., start at the t0 moment
Work, the direct impulse signal that one width of transmitting is T1 after the T2 times of interval, is launched one wide
The direct impulse signal for T3 is spent, after the T4 times of interval, then launches the detection that a width is T5
Pulse signal, is continuously repeated with this；
Pulse interval between the direct impulse signal of transmitting receives the partial echo letter of target
Number, i.e., start at the t0 moment receive target echo signal, skip first emission detection pulse signal when
Between T1, stop emission detection pulse signal the T2 periods in receive target echo-signal, it
The time T3 of emission detection pulse signal is skipped again afterwards, when stopping the T4 of emission detection pulse signal
Between the echo-signal of target is received in section, continuously repeated with this；And
Complete echo-signal is recovered based on the part echo signal, it is described based on partial echo letter
Number recovering complete echo-signal includes：Obtain the time window for receiving target echo signal, direct impulse letter
Number and partial target echo-signal；According to the direct impulse signal parameter of setting, receive target echo letter
Number time window and the part echo signal of reception recover the complete echo-signal.
4. method according to claim 3, wherein, it is described to be believed according to the direct impulse of setting
The part echo signal of number parameter, the time window for receiving target echo signal and reception recovers described
Complete echo-signal, including：
The part echo signal is transformed into frequency domain, to obtain the first frequency-region signal YP(ω)；
The time window is transformed into frequency domain, to obtain the second frequency-region signal PT(ω)；
According to the first frequency-region signal YP(ω) and the second frequency-region signal PT(ω), is counted according to the following formula
Calculate the frequency-region signal Y (ω) of the complete echo-signal：
WhereinRepresent convolution algorithm；And
It is described complete to obtain by frequency-region signal Y (ω) inverse transformations of the complete echo-signal to time domain
Echo-signal.
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| CN111294116A (en) * | 2019-11-26 | 2020-06-16 | 北京航天长征飞行器研究所 | Linear frequency modulation signal processing method, device and equipment |
| CN111294117A (en) * | 2019-11-26 | 2020-06-16 | 北京航天长征飞行器研究所 | Phase coding signal processing method, device and equipment |
| CN111294117B (en) * | 2019-11-26 | 2022-04-29 | 北京航天长征飞行器研究所 | Phase coding signal processing method, device and equipment |
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