CN102819024A - Microwave hyperspectral digital processing and control method and device - Google Patents

Abstract

The embodiment of the invention discloses a microwave hyperspectral digital processing and control method and a device. The device comprises a collecting unit and a microwave hyperspectral digital processing unit, wherein the collecting unit is used for collecting voltage signals with sky bright temperature information output by a microwave hyperspectral radiation meter and real-time ground surface weather data required by atmospheric profile inversion, and the microwave hyperspectral digital processing unit is used for inversing the voltage signals with sky bright temperature information collected by the collecting unit and the real-time ground surface weather data required by the atmospheric profile inversion into weather parameter curves. The method and the device provided by the invention solve the technical problem that the microwave radiation meter in the prior art cannot be used for hyperspectral resolution atmospheric profile inversion, the high-speed microwave hyperspectral radiation meter data collection is realized, and meanwhile, the atmospheric profile inversion at the hyperspectral resolution is also realized.

Description

The high spectrum digital processing of a kind of microwave and control method and device

Technical field

The present invention relates to the microwave remote sensing technique field, the high spectrum digital processing of particularly a kind of microwave and control method and device.

Background technology

Along with the development in microwave technology, in the microwave remote sensing field, microwave radiometer is the basic microwave remote sensing equipment of a passive type, can round-the-clock, round-the-clock work.Be mainly used in the Small and Medium Sized weather phenomenon, like storm, lightning, heavy showers, mist, freezing and the boundary layer is turbulent.For the Small and Medium Sized weather disaster that generates or dissipate in the short time, though just zonal, part incident harmfulness is bigger.In present mesoscale weather phenomenon observation process, sounding balloon and weather radar are the means of using always.Microwave radiation has capacity of working on one's own, can be very suitable for automatic weather station in almost various environmental baseline work.Be used for the complete atmosphere profile of inverting, inverting data and raw data are all preserved.Complete customized or global standards algorithm is provided.

Though microwave radiometer has above advantage, can't realize robotization control and can not carry out the atmosphere profile inverting of high frequency spectrum resolution.Therefore, the atmosphere profile inverting that how to realize high spectral resolution is one has technical matters to be solved.

Summary of the invention

The high spectrum digital processing of a kind of microwave and control method and device are provided, to solve the technical matters that the prior art microwave radiometer can not carry out the atmosphere profile inverting of high frequency spectrum resolution in the embodiment of the invention.

For addressing the above problem, the present invention provides a kind of microwave high spectrum digital processing and control unit, comprising: the high spectrum digital processing element of collecting unit and microwave, wherein,

Said collecting unit is used for gathering voltage signal that has the bright temperature information of sky and the required real-time face of land weather data of atmosphere profile inverting that the high spectrum receiver unit of the high spectral radiometer microwave of microwave is exported; And said voltage signal and face of land weather data be transferred to the high spectrum digital processing unit of said microwave;

The high spectrum digital processing element of said microwave; Be used to receive voltage signal that has the bright temperature information of sky and the required real-time face of land weather data of atmosphere profile inverting that collecting unit sends, said face of land weather data comprises: the radiation temperature of black matrix reference source and the absolute pressure of atmosphere; And be the meteorologic parameter curve with said voltage signal and face of land weather data inverting.

Optional, said collecting unit comprises:

The HSDA unit is used to gather the voltage signal that has the bright temperature information of sky of the high spectrum receiver unit output of microwave;

The global location unit is used to measure the global position system GPS data, so that clock is positioned;

Temperature Humidity Sensor is used to detect temperature, the humidity information on the face of land;

Baroceptor is used to detect the pressure information on the face of land.

Optional, the high spectrum digital processing element of said microwave comprises:

The Neural Network Data processing unit is used to obtain the disclosed for many years atmospheric temperature profile of local weather bureau, air pressure profile and vapour pressure profile; Said atmospheric temperature profile, air pressure profile and vapour pressure profile are scaled the bright temperature matrix of first atmosphere; And the bright temperature matrix of said first atmosphere is carried out frequency spectrum compress the bright temperature matrix of first atmosphere after obtaining compressing; And utilize neural network algorithm that the bright temperature matrix of first atmosphere after compressing is carried out training managing, obtain the high spectrum neural network of the required microwave of having trained in inverting unit, and store the high spectrum neural network of said microwave of having trained;

The inverting unit, the high spectrum neural network of microwave that is used for having trained according to said Neural Network Data processing unit is meteorologic parameter curve or atmosphere profile with voltage signal that has the bright temperature information of sky and the required real-time face of land weather data inverting of atmosphere profile inverting that said collecting unit collects.

Optional, said Neural Network Data processing unit comprises:

The profile collector unit is used to add up the disclosed for many years atmospheric temperature profile of local weather bureau, air pressure profile and vapour pressure profile;

Bright temperature analogue unit is used for said atmospheric temperature profile, air pressure profile and the vapour pressure profile of statistics are scaled the bright temperature matrix of big first gas; The bright temperature matrix of said first atmosphere comprises the bright temperature information of atmosphere of high frequency spectrum resolution for many years;

The high spectral information compression unit of first microwave is used for the bright temperature matrix of first atmosphere of said bright temperature analogue unit output is carried out frequency spectrum compression, the bright temperature matrix of first atmosphere after obtaining compressing;

The neural metwork training unit; Be used to utilize neural network algorithm to carry out training managing to compressing the bright temperature matrix of back first atmosphere according to said atmospheric temperature profile, air pressure profile and vapour pressure profile; Obtain the high spectrum neural network of the required microwave of having trained in inverting unit, and store the high spectrum neural network of said microwave of having trained.

Optional, said neural metwork training unit comprises:

Input port is used to import local atmospheric temperature profile, air pressure profile and the vapour pressure profile that said profile collector unit is added up;

Neuron; Be used for utilizing atmospheric temperature profile, air pressure profile and the vapour pressure profile of input port input that the bright temperature matrix of first atmosphere after compressing is carried out iteration convergence, obtain the high spectrum neural network of the required microwave of having trained in inverting unit through the neural network of setting;

Output port is used to export the neural network of having trained behind the said neuron iteration convergence.

Optional, said inverting unit comprises:

Bright temperature data processing unit is used to obtain the bright temperature information of atmosphere that said collecting unit is gathered, and according to the bright temperature information of said atmosphere, produces the bright temperature matrix of second atmosphere, and the bright temperature matrix of said second atmosphere is transferred to the high spectral information compression unit of second microwave;

The high spectral information compression unit of second microwave, the bright temperature matrix of second atmosphere that said bright temperature data processing unit is exported carries out frequency spectrum compression, the bright temperature matrix of second atmosphere after obtaining compressing;

The Processing with Neural Network unit, the high spectrum neural network of microwave that is used for having trained according to said neural metwork training unit is meteorologic parameter curve or atmosphere profile with the bright temperature inverse matrix of said second atmosphere.

Optional, also comprise:

Control module was used for before said collecting unit collects said voltage signal and the face of land weather data rotational angle of controlled microwave mirror unit; And control the frequency range channel selecting of one-level receiver in the high spectrum receiver unit of said microwave; And the manually-operated of the high spectral radiometer of controlled microwave or automation mechanized operation.

Optional, said control module comprises:

The rotatable platform control module is used for the controlled microwave mirror unit and turns to appointment degree of facing upward and position angle, so that said microwave reflection mirror unit is consistent with the center of the receiving antenna unit of the high spectrum receiver unit connection of said microwave;

The receiver control module, the frequency range that is used for the high spectrum receiver unit of controlled microwave one-level receiver is divided;

The execute-in-place unit is used for the front panel of the high spectral radiometer of microwave is directly operated.

Optional, also comprise:

The operated from a distance control module; Be used for before said collecting unit is gathered the required real-time face of land weather data of the voltage signal that has the bright temperature information of sky and the inverting of atmosphere profile of the high spectral radiometer output of microwave; The control signal that receiving remote sends is according to the rotational angle of microwave reflection mirror unit described in the high spectral radiometer of said control signal controlled microwave; And the frequency range channel selecting of controlling one-level receiver in the high spectrum receiver unit of said microwave; And the manually-operated of the high spectral radiometer of controlled microwave or automation mechanized operation.

Accordingly, the present invention also provides high spectrum digital processing of a kind of microwave and control method, and said method comprises:

Gather the voltage signal that has the bright temperature information of sky and the required real-time face of land weather data of atmosphere profile inverting of the high spectrum receiver unit output of microwave in the high spectral radiometer of microwave; Said face of land weather data comprises: the radiation temperature of black matrix reference source and the absolute pressure of atmosphere;

With said voltage signal and the required real-time face of land weather data inverting of atmosphere profile inverting that has the bright temperature information of sky is the meteorologic parameter curve.

Optional, said is the meteorologic parameter curve with said voltage signal and the required real-time face of land weather data inverting of atmosphere profile inverting that has the bright temperature information of sky, comprising:

Add up the disclosed for many years atmospheric temperature profile of local weather bureau, air pressure profile and vapour pressure profile; Said atmospheric temperature profile, air pressure profile and vapour pressure profile are scaled the bright temperature matrix of atmosphere; And the bright temperature matrix of said atmosphere is carried out frequency spectrum compress the bright temperature matrix of the atmosphere after obtaining compressing; And utilize neural network algorithm to carry out training managing to compressing the bright temperature matrix of back atmosphere, the high spectrum neural network of the microwave of having been trained, and store the high spectrum neural network of said microwave of having trained;

Voltage signal that has the bright temperature information of sky and the required real-time face of land weather data inverting of atmosphere profile inverting that to obtain according to the high spectrum neural network of said microwave of having trained are meteorologic parameter curve or atmosphere profile.

Optional, before collecting said voltage signal and face of land weather data, said method also comprises:

The rotational angle of controlled microwave mirror unit; And control the frequency range channel selecting of one-level receiver in the high spectrum receiver unit of said microwave; And the manually-operated of the high spectral radiometer of controlled microwave or automation mechanized operation.

Optional, before collecting said voltage signal and face of land weather data, said method also comprises:

The control signal that receiving remote sends;

Rotational angle according to microwave reflection mirror unit described in the high spectral radiometer of said control signal controlled microwave; And the frequency range channel selecting of controlling one-level receiver in the high spectrum receiver unit of said microwave; And the manually-operated of the high spectral radiometer of controlled microwave or automation mechanized operation.

Can know that by technique scheme the present invention is through obtaining voltage signal and the required real-time face of land weather data of atmosphere profile inverting that the high spectrum receiver unit of microwave output multichannel has the bright temperature information of sky, and be the meteorologic parameter curve its inverting; Realized the high spectral radiometer data acquisition of microwave at a high speed; Also realized simultaneously the atmosphere profile inverting under the high frequency spectrum resolution.That is to say that the present invention has combined the high spectral radiometer of microwave, embedded system is combined with traditional hyperchannel radiometer, thereby a kind of full-automatic, processing speed is fast and system complexity is low digital processing unit is provided.

Description of drawings

In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use among the embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

First structural representation of the high spectrum digital processing and control unit of a kind of microwave that Fig. 1 provides for the embodiment of the invention;

Second structural representation of the high spectrum digital processing and control unit of a kind of microwave that Fig. 2 provides for the embodiment of the invention;

The 3rd structural representation of the high spectrum digital processing and control unit of a kind of microwave that Fig. 3 provides for the embodiment of the invention;

The 4th structural representation of the high spectrum digital processing and control unit of a kind of microwave that Fig. 4 provides for the embodiment of the invention;

The 5th structural representation of the high spectrum digital processing and control unit of a kind of microwave that Fig. 5 provides for the embodiment of the invention;

The 6th structural representation of the high spectrum digital processing and control unit of a kind of microwave that Fig. 6 provides for the embodiment of the invention;

The interface synoptic diagram of execute-in-place unit in the high spectral radiometer of a kind of microwave that Fig. 7 provides for the embodiment of the invention;

The 7th structural representation of the high spectrum digital processing and control unit of a kind of microwave that Fig. 8 provides for the embodiment of the invention;

The high spectrum digital processing of a kind of microwave that Fig. 9 provides for the embodiment of the invention and the process flow diagram of control method.

Embodiment

To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, complete description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.

See also Fig. 1, first structural representation of the high spectrum digital processing and control unit of a kind of microwave that Fig. 1 provides for the embodiment of the invention; In this embodiment, the high spectrum digital processing and control unit of said microwave adopts built-in Linux operating system, and realizes based on AT91SAM9261 embedded hardware platform, but is not limited to this.The high spectrum digital processing and control unit of said microwave is connected with high spectrum receiver unit of microwave or the high spectrum receiver apparatus of microwave in the high spectral radiometer of microwave; Wherein, The high spectrum digital processing and control unit of microwave comprises: collecting unit 11 and the high spectrum digital processing element 12 of microwave; Wherein

Said collection unit 11 is used for gathering the voltage signal that has the bright temperature information of sky and the required real-time face of land weather data of atmosphere profile inverting of the high spectrum receiver unit output of the high spectral radiometer microwave of microwave; And said voltage signal and face of land weather data be transferred to the high spectrum digital processing element 12 of said microwave;

Wherein, in this embodiment, the process of its collection can be connected with the high spectral radiometer of microwave or transmits through netting twine or the memory device that has a usb interface.But; Also can be that the high spectrum receiver unit of microwave in the high spectral radiometer of microwave initiatively feeds back to the high spectrum digital processing element of microwave with voltage signal and the required real-time face of land weather data of atmosphere profile inverting; Certainly; Can also be other transmission mode, such as WIFI etc., present embodiment limit.

The high spectrum digital processing element 12 of said microwave; Be used to receive voltage signal that has the bright temperature information of sky and the required real-time face of land weather data of atmosphere profile inverting that collecting unit 11 sends, said face of land weather data comprises: the radiation temperature of black matrix reference source and the absolute pressure of atmosphere; And be that the inverting of meteorologic parameter curve is the meteorologic parameter curve with said voltage signal and face of land weather data inverting.

In this embodiment, the technical indicator of the high spectrum digital processing element of said microwave is as shown in table 1:

Table 1

The high spectrum digital processing element of microwave	Technical indicator
		The moisture profile precision	4%～7%
The temperature profile precision	3%～5%
		Vertical resolution	< 200 meters

In the embodiment of the invention; The voltage signal and the required real-time face of land weather data of atmosphere profile inverting that have the bright temperature information of sky through the multichannel that collects; And be the meteorologic parameter curve with its inverting, the present invention has realized the high spectral radiometer data acquisition of microwave at a high speed; Also realized simultaneously the atmosphere profile inverting under the high frequency spectrum resolution.

Optional; In the basis of the foregoing description; The high spectrum digital processing element 12 of said microwave can comprise: Neural Network Data processing unit 121 and inverting unit 122; Its structural representation is as shown in Figure 2, second structural representation of the high spectrum digital processing and control unit of a kind of microwave that Fig. 2 provides for the embodiment of the invention.Wherein, said Neural Network Data processing unit 121 is used to obtain the disclosed for many years atmospheric temperature profile of local weather bureau, air pressure profile and vapour pressure profile; Said atmospheric temperature profile, air pressure profile and vapour pressure profile are scaled the bright temperature matrix of first atmosphere; And the bright temperature matrix of said first atmosphere is carried out frequency spectrum compress the bright temperature matrix of first atmosphere after obtaining compressing; And utilize neural network algorithm that the bright temperature matrix of first atmosphere after compressing is carried out training managing, obtain the high spectrum neural network of the required microwave of having trained in inverting unit, and store the high spectrum neural network of said microwave of having trained.Wherein, said Neural Network Data processing unit also can be called the Neural Network Data storehouse;

Said inverting unit 122, the high spectrum neural network of microwave that is used for having trained according to said Neural Network Data processing unit is meteorologic parameter curve or atmosphere profile with voltage signal that has the bright temperature information of sky and the required real-time face of land weather data inverting of atmosphere profile inverting that said collecting unit collects.

Also see also Fig. 3; The 3rd structural representation of the high spectrum digital processing and control unit of a kind of microwave that Fig. 3 provides for the embodiment of the invention; On the basis of the foregoing description, said Neural Network Data processing unit 121 comprises: profile collector unit 311, bright temperature analogue unit 312, the high spectral information compression unit 313 of first microwave and neural metwork training unit 314; Said inverting unit 122 comprises: bright temperature data processing unit 321, the high spectral information compression unit 322 of second microwave and Processing with Neural Network unit 323, wherein,

Said profile collector unit 311 is used to add up the disclosed for many years atmospheric temperature profile of local weather bureau, air pressure profile and vapour pressure profile; Such as, information such as the disclosed atmospheric temperature profile of statistics Beijing weather bureau, air pressure profile and vapour pressure profile, this information forms based on nearly 1989～2011 years atmosphere profile data statistics.The meteorological data data were arranged by month, can count local meteorological data according to these meteorological data data, and said meteorological data is exported to bright temperature analogue unit 312;

Said bright temperature analogue unit 312 is used for said atmospheric temperature profile, air pressure profile and the vapour pressure profile of statistics are scaled the bright temperature matrix of big first gas; The bright temperature matrix of said first atmosphere comprises the bright temperature information of atmosphere of high frequency spectrum resolution for many years;

That is to say that said bright temperature analogue unit 312 is based on Liebe87 radiation delivery model, Beijing area atmospheric temperature profile, air pressure profile and vapour pressure profile that the profile collector unit is added up are scaled the bright temperature matrix of atmosphere, wherein, and the bright temperature matrix T of atmosphere _fComputing formula (θ) does, but is not limited to this following manner, also can pass through other modes, and present embodiment does not limit:

$T_f\left(\mathrm{\θ}\right)={\∫}_0^{\∞}{T}_f^{\′}{e}^{-{\mathrm{\τ}}_f\left(\mathrm{\θ}\right)}{\mathrm{d\τ}}_f\left(\mathrm{\θ}\right)/(1-e^{-{\mathrm{\τ}}_f(\∞,\mathrm{\θ})})---\left(1\right)$

Wherein, f is a frequency, and θ is the irradiating angle of the high spectral radiometer of microwave, T ' _fBe defined as:

$T_f^{\&prime;}=\frac{B_f\left(t\right){\mathrm{<figure-callout\; id="2"\; label="c"\; filenames="HDA00002038315900013.png"\; state="\{\{state\}\}">c</figure-callout>}}^2}{2f^{2}k}---\left(2\right)$

$B_f\left(t\right)=\frac{{2\mathrm{hf}}^3}{{\mathrm{<figure-callout\; id="2"\; label="c"\; filenames="HDA00002038315900013.png"\; state="\{\{state\}\}">c</figure-callout>}}^2}\&CenterDot;\frac{1}{\exp \left(\frac{\mathrm{hf}}{\mathrm{kt}}\right)-1}---\left(3\right)$

Wherein, h is a Planck's constant in the formula (3), and k is a Boltzmann constant, and c is the light velocity, and t is the temperature under the current atmosphere height, and this temperature is by from the Beijing area atmospheric temperature profile of profile collector unit statistics, extracting.

Wherein, τ in the formula (1) _f(θ) be atmospheric opacity under the current height, be specially:

${\mathrm{\&tau;}}_f\left(\mathrm{\&theta;}\right)={\&Integral;}_0^{h_z}{K}_a\left(z\right)\sec \mathrm{\&theta;dz}---\left(4\right)$

Wherein, h _zBe the atmosphere height of radiometer irradiating angle, z is the direction of illumination of radiometer, K _aBe the Atmospheric Absorption coefficient under the current atmosphere height; Wherein, Atmospheric Absorption COEFFICIENT K _aObtain said Atmospheric Absorption COEFFICIENT K by the linear spectral line match of oxygen and aqueous vapor is approximate _aComputing formula be:

K _a(f)=0.1820fN″(f) （5）

" (f) be the imaginary part of atmosphere complex index of refraction, it has comprised the contribution of oxygen, aqueous vapor linear spectral line for wherein, N.The contribution calculation of the linear spectral line of oxygen and aqueous vapor is specific as follows:

$N_L\left(f\right)=\underset{i=1}{\overset{44}{\mathrm{\&Sigma;}}}{S}_{i}F{\left(f\right)}_i+\underset{j=1}{\overset{34}{\mathrm{\&Sigma;}}}{S}_{j}F{\left(f\right)}_j---\left(6\right)$

Wherein, S _iThe intensity (KHz) of representing i bar spectral line, F (f) _iBe the spectrum shape function (GHz of corresponding spectral line ^-1), f _iIt is the frequency of i bar spectral line.

Compose for oxygen absorption:

S _i=10 ^-6a ₁pθ ³exp[a ₂(1-θ _t)] （7）

$F{\left(f\right)}_i=\frac{f}{f_i}[\frac{1-{\mathrm{i\&delta;}}_i}{f_i-f-i{\mathrm{\&gamma;}}_i}-\frac{1+i{\mathrm{\&delta;}}_i}{f_i+f+i{\mathrm{\&gamma;}}_i}]---\left(8\right)$

Wherein

${\mathrm{\&gamma;}}_i={10}^{-3}{a}_3(p{\mathrm{\&theta;}}_t^{(0.8-a_4)}+1.1e{\mathrm{\&theta;}}_t)---\left(9\right)$

δ _i=10 ^-3(a ₅+a ₆θ _t) _pθ _t ^0.8 （10）

θ _t=300/(t+273.15) （11）

Compose for moisture sorption:

S _j=10 ^-3b ₁eθ _t ^3.5exp[b ₂(1-θ _t)] （12）

$F{\left(f\right)}_j=\frac{f}{f_j}[\frac{1-i{\mathrm{\&delta;}}_j}{f_j-f-{\mathrm{i\&gamma;}}_j}-\frac{1+i{\mathrm{\&delta;}}_j}{f_j+f+{\mathrm{i\&gamma;}}_j}]---\left(13\right)$

Wherein

${\mathrm{\&gamma;}}_j={10}^{-3}{b}_3({\mathrm{p\&theta;}}_t^{b_4}+b_{5}e{\mathrm{\&theta;}}_t^{b_6})---\left(14\right)$

δ _j＝0 （15）

Wherein, the p in the above-mentioned formula, t, e represent air pressure, temperature and the vapour pressure under the current atmosphere height respectively, and they are by extracting somewhere (such as the Beijing area) atmospheric gas pressure profile, temperature profile and vapour pressure profile in the profile collector unit.And said a ₁～a ₆And b ₁～b ₆Be respectively the spectral line absorption efficiency of oxygen and aqueous vapor, be known constant.Through type (5) calculates the Atmospheric Absorption COEFFICIENT K under the high frequency spectrum resolution of somewhere (such as the Beijing area) _a, and substitution formula (1) obtains the bright temperature matrix of atmosphere under different frequency, the different irradiating angle with formula (4).The bright temperature matrix of atmosphere has comprised the bright temperature information of atmosphere of Beijing area high frequency spectrum resolution in 1989～2011 years.

The high spectral information compression unit 313 of said first microwave is used for the bright temperature matrix of first atmosphere of said bright temperature analogue unit 312 outputs is carried out frequency spectrum compression, the bright temperature matrix of first atmosphere after obtaining compressing; Wherein, the high spectral information compression unit 313 of said microwave is based on mapping principal element method, and the bright temperature matrix of first atmosphere that bright temperature analogue unit 312 is exported carries out the compression on the frequency spectrum; Such as can 100 atmosphere profiles with upper frequency being compressed in 20, the purpose of its compression is to avoid the too high neural network training that causes of pathosis of the bright temperature matrix of atmosphere under the high spectrum condition of microwave to fail.

Said neural metwork training unit 314; Be used to utilize neural network algorithm to carry out training managing to compressing the bright temperature matrix of back first atmosphere according to said atmospheric temperature profile, air pressure profile and vapour pressure profile; Obtain the high spectrum neural network of the required microwave of having trained in inverting unit, and store the high spectrum neural network of said microwave of having trained;

Wherein, Said neural metwork training unit is realized based on neural network algorithm; Comprise input port, output port and neuron, wherein, said input port is used to import local atmospheric temperature profile, air pressure profile and the vapour pressure profile that said profile collector unit is added up; Said neuron; Be used for utilizing atmospheric temperature profile, air pressure profile and the vapour pressure profile of input port input that the bright temperature matrix of first atmosphere after compressing is carried out iteration convergence, obtain the high spectrum neural network of the required microwave of having trained in inverting unit through the neural network of setting; Said output port is used to export the neural network of having trained behind the said neuron iteration convergence.

Among this embodiment, the neural metwork training unit adopts error back propagation (BP) neural network algorithm usually, and neuronic output function adopts S shape transition function, and its S shape transition function is described below:

T _f(θ)=1/[1+e-∑(W _p+b)] （16）

Wherein, T _fBe the bright temperature matrix of atmosphere (θ), f and θ are respectively the frequency of operation and the irradiating angle of the high spectral radiometer of microwave.P is an input port, and when for example needing trained temperature profile neural network, p represents the atmospheric temperature profile, and W and b are respectively required weights of computation process and threshold value.The computation process of neural network is following:

1,,, obtains the neuron output of last one deck through the neuronal structure of setting and the weights and the threshold value of a preceding iteration by the known atmosphere profile of input port input.

2, said weights and threshold value are made amendment, calculate weights and the influence of threshold value before last course, and return the 1st after they are made amendment and go on foot total error.

After said process carried out iteration convergence, promptly obtain required neural network, that is to say, said neural metwork training unit is used to the neural network that provides the inverting unit required.Wherein, the computation process of neural network has been to know technology to those skilled in the art, repeats no more once more.

Optional, said inverting unit 122, being used for the inverting of radiometer observation data is the atmosphere profile, comprising: bright temperature data processing unit 321, the high spectral information compression unit 322 of second microwave and Processing with Neural Network unit 323, wherein,

Said bright temperature data processing unit 321; Be used to obtain the bright temperature information of atmosphere that said collecting unit 11 is gathered; According to the bright temperature information of said atmosphere, produce the bright temperature matrix of second atmosphere, and the bright temperature matrix of said second atmosphere is transferred to the high spectral information compression unit 322 of second microwave;

The high spectral information compression unit 322 of said second microwave, the bright temperature matrix of second atmosphere that said bright temperature data processing unit 321 is exported carries out frequency spectrum compression, the bright temperature matrix of second atmosphere after obtaining compressing; Wherein,

The high spectral information compression unit of this second microwave adopts identical structure with the high spectral information compression unit of first microwave in the Neural Network Data processing unit; Its difference is that this this high spectral information compression unit of second microwave is used to compress the bright temperature matrix of atmosphere of the high spectral radiometer actual measurement of microwave;

Said Processing with Neural Network unit 323, the high spectrum neural network of microwave that is used for having trained according to said neural metwork training unit 314 is meteorologic parameter curve or atmosphere profile with the bright temperature inverse matrix of said second atmosphere.

Wherein, Said Processing with Neural Network unit is based on neural network algorithm; Through extracting the neural network that has trained in the neural metwork training unit (being called the Neural Network Data storehouse again), the bright temperature inverse matrix of second atmosphere that the high spectral information compression unit of microwave is exported is the atmosphere profile.

Optional; In the above-described embodiments, the high spectrum digital processing unit of said microwave can also comprise: operated from a distance control module 41, and its structural representation is as shown in Figure 4; The 4th structural representation of the high spectrum digital processing unit of a kind of microwave that Fig. 4 provides for the embodiment of the invention; Wherein, said operated from a distance control module 41 was used for before said collecting unit 11 obtains the required real-time face of land weather data of the voltage signal that has the bright temperature information of sky and the inverting of atmosphere profile of the high spectral radiometer of microwave output; The control signal that receiving remote sends is controlled the rotational angle of said microwave reflection mirror unit according to said control signal; And the frequency range channel selecting of controlling one-level receiver in the high spectrum receiver unit of said microwave; And the manually-operated of the high spectral radiometer of controlled microwave or automation mechanized operation.

Wherein, said operated from a distance control module can be made up of remote computer and long-range man-machine interface; Wherein, Said remote computer can be desktop computer or the notebook computer that Windows XP operating system has been installed; Said remote computer is positioned over indoor apart from 50 meters far away of the high spectral radiometers of microwave, is connected with the high spectral radiometer of microwave or transmits through netting twine or the memory device that has a usb interface.Long-range man-machine interface realizes through software, such as, the C Plus Plus in Microsoft Visual Studio 10.0 softwares etc.That is to say that said remote operation unit is used to realize indoor automation mechanized operation to radiometer.

Optional, the high spectrum digital processing unit of said microwave can be integrated in computing machine or the server, also can independently dispose, and this enforcement does not limit.

In the foregoing description, through obtaining voltage signal and the required real-time face of land weather data of atmosphere profile inverting that the high spectrum receiver unit of microwave output multichannel has the bright temperature information of sky, and be the meteorologic parameter curve with its inverting; Realized the high spectral radiometer data acquisition of microwave at a high speed; Also realized simultaneously the atmosphere profile inverting under the high frequency spectrum resolution.That is to say that the present invention has combined the high spectral radiometer of microwave, embedded system is combined with traditional hyperchannel radiometer, thereby a kind of full-automatic, processing speed is fast and system complexity is low digital processing unit is provided.

Optional; Said device can also comprise control module 51; Its structural representation is as shown in Figure 5; The 5th structural representation of the high spectrum digital processing and control unit of a kind of microwave that Fig. 5 provides for the embodiment of the invention, said control module 51 was used for before said collecting unit 11 collects said voltage signal and face of land weather data, the rotational angle of controlled microwave mirror unit; And control the frequency range channel selecting of one-level receiver in the high spectrum receiver unit of said microwave; And the manually-operated of the high spectral radiometer of controlled microwave or automation mechanized operation.

Optional, said control module 51 comprises: rotatable platform control module 511, receiver control module 512 and execute-in-place unit 513; Wherein, its structural representation is as shown in Figure 6, the 6th structural representation of the high spectrum digital processing and control unit of a kind of microwave that Fig. 6 provides for the embodiment of the invention, wherein,

Said rotatable platform control module 511 is used for the controlled microwave mirror unit and turns to appointment degree of facing upward and position angle, so that said microwave reflection mirror unit is consistent with the center of the receiving antenna unit of the high spectrum receiver unit connection of said microwave.Wherein, Said rotatable platform control module can adopt six road I/O interface structures of embedded system to realize; Specifically comprise: pulse signal interface, enable signal interface, direction signal interface, zero signal interface, A road signaling interface and B road signaling interface, but be not limited to this, wherein; A, B two paths of signals phase phasic difference 90 degree; Through judging phase relation control motor rotation speed and the direction between them, that is to say that said rotatable platform control module is used for the rotational angle of controlled microwave catoptron.

Wherein, Said rotatable platform control module comprises: servomotor and angle of pitch orientator; Said servomotor is selected the real-Time Compensation type closed-loop control servomotor on the market for use, and it comprises: several sections such as motor, motor driver, closed loop controller and scrambler.It is used for the rotation of controlled microwave mirror unit, and the high spectrum digital processing unit of microwave (being digital processing and system control unit) that servomotor passes through to be connected carries out angle control; When the microwave reflection mirror unit rotated to the zenith angle, pulse signal of scrambler emission was given digital processing and system control unit, is used for the period regulation luffing angle; This angle of pitch orientator selects for use two-dimentional gravity sensor chip to realize that it is connected in servomotor, is used for measuring in real time the anglec of rotation of microwave reflection mirror unit, and angle of pitch orientator connects and transmission of angle information is given digital processing and system control unit.

Said receiver control module 512, the frequency range that is used for the high spectrum receiver unit of controlled microwave one-level receiver is divided.Wherein, Said receiver control module adopts the multidiameter delay interface structure of embedded system to realize; 4 bit binary number of parallel interface representative have been represented the work at present passage of one-level receiver; That is to say that said receiver control module is used to control the frequency range division of one-level receiver, the parallel interface of said receiver control module is as shown in table 2:

Table 2

Each channel central frequency of one-level receiver	4 bit parallel interfaces
		18.4GHz	?0000
19.2GHz	?0001
		20.0GHz	?0010
20.8GHz	?0011
		21.6GHz	?0100
22.4GHz	?0101

23.2GHz	0110
		24.0GHz	0111
24.8GHz	1000
		25.6GHz	1001

Said execute-in-place unit 513 is used for according to the high spectral radiometer of microwave is directly operated.Wherein, Said execute-in-place unit comprises: several sections such as liquid crystal touch screen 5331, numeric keypad 5332 and on-the-spot man-machine interface (not shown); Its structural representation is as shown in Figure 7, the interface synoptic diagram of execute-in-place unit in the high spectral radiometer of a kind of microwave that Fig. 7 provides for the embodiment of the invention.

As shown in Figure 7, said liquid crystal touch screen 5331 is installed on side of the high spectral radiometer of microwave with numeric keypad 5332; Liquid crystal touch screen 5331 is controlled by the operated from a distance control module; On-the-spot man-machine interface is the control interface that is installed in the embedded system; And show through LCD screen 5331; Operate through liquid crystal touch screen 5331 and numeric keypad 5332, that is to say that the execute-in-place unit is used to realize outdoor intuitive operation to radiometer.

Optional, on the basis of Fig. 6, said collecting unit 11 can comprise: HSDA unit 111, global location unit 112, Temperature Humidity Sensor 113 and baroceptor 114; Its structural representation is as shown in Figure 8, the 7th structural representation of the high spectrum digital processing and control unit of a kind of microwave that Fig. 8 provides for the embodiment of the invention; Wherein,

Said HSDA unit 111 is used to gather the voltage signal that has the bright temperature information of sky of the high spectrum receiver unit output of microwave; Wherein, said HSDA unit can be the AD acquisition module, and said AD acquisition module selects for use the AD chip to realize, promptly realizes multi-channel sampling through multiplexing structure.Wherein, the technical indicator of AD acquisition module is as shown in table 3.

Table 3

The AD acquisition module	Technical indicator
		The acquisition channel number	10
Sampling precision	16
		Sampling rate	>;1KHz

Global location unit 112 is used to measure the global position system GPS data, so that clock is positioned, perhaps said gps data is transferred to remote computer, so that said computing machine carries out the clock location; Wherein, the global location unit can be the GPS module, and it selects model for use can be the LEA-5S model, and said GPS module comprises gps antenna and GPS receiver, and the process that it is concrete to those skilled in the art, has been to know technology, repeats no more at this.

Said Temperature Humidity Sensor 113 is used to detect temperature, the humidity information on the face of land; Wherein, the model that said Temperature Humidity Sensor is selected for use can be the Temperature Humidity Sensor of JCJ100N model, but is not limited to this;

Said baroceptor 114 is used to detect the pressure information on the face of land; Its model of selecting for use can be the baroceptor of BMP085 model, but is not limited to this.Wherein, the precision of the baroceptor on the above-mentioned detection face of land is as shown in table 4:

Table 4

The baroceptor on the face of land	Precision
		Temperature (20 ° of C～60 ° C)	0.5°C25°C
Relative humidity (0～100%)	3%
		Air pressure (800～1060mb)	0.3mb

Can know by the foregoing description; The embodiment of the invention provides a kind of microwave high spectrum digital processing unit; Through obtaining the voltage signal that has the bright temperature information of sky and the required real-time face of land weather data of atmosphere profile inverting of the output of the high spectral radiometer of microwave, and be the meteorologic parameter curve with its inverting.The present invention has realized radiometer data acquisition at a high speed; Realized robotization control to the high spectral radiometer of microwave; Realized the atmosphere profile inverting under the high frequency spectrum resolution; Further also realized the atmosphere profile inverting of high precision, high vertical resolution; Also satisfied simultaneously the requirement of lightweight, low-power consumption and low complex degree.

Based on above-mentioned implementation procedure, the embodiment of the invention also provides the method for high spectrum digital processing of a kind of microwave and control, and its process flow diagram is as shown in Figure 9, and said method comprises:

Step 901: the voltage signal that has the bright temperature information of sky and the required real-time face of land weather data of atmosphere profile inverting of gathering the high spectrum receiver unit output of microwave in the high spectral radiometer of microwave; Said face of land weather data comprises: the radiation temperature of black matrix reference source and the absolute pressure of atmosphere;

Step 902: with said voltage signal and the required real-time face of land weather data inverting of atmosphere profile inverting that has the bright temperature information of sky is the meteorologic parameter curve.

Optional, before the obtaining of step 901, said method can also comprise: send different control signals to the high spectral radiometer of microwave, so that the high spectral radiometer of microwave is according to the rotational angle of said different control signal controlled microwave mirror units; Control the frequency range channel selecting of one-level receiver in the high spectrum receiver unit of said microwave; And the manually-operated of the high spectral radiometer of controlled microwave or automation mechanized operation.

Optional; Said is the meteorologic parameter curve with said voltage signal and the required real-time face of land weather data inverting of atmosphere profile inverting that has the bright temperature information of sky, comprising: add up the disclosed for many years atmospheric temperature profile of local weather bureau, air pressure profile and vapour pressure profile; Said atmospheric temperature profile, air pressure profile and vapour pressure profile are scaled the bright temperature matrix of atmosphere; And the bright temperature matrix of said atmosphere is carried out frequency spectrum compress the bright temperature matrix of the atmosphere after obtaining compressing; And utilize neural network algorithm to carry out training managing to compressing the bright temperature matrix of back atmosphere, the high spectrum neural network of the microwave of having been trained, and store the high spectrum neural network of said microwave of having trained; Voltage signal that has the bright temperature information of sky and the required real-time face of land weather data inverting of atmosphere profile inverting that to obtain according to the high spectrum neural network of said microwave of having trained are meteorologic parameter curve or atmosphere profile.

Optional, before collecting said voltage signal and face of land weather data, said method can also comprise: the rotational angle of controlled microwave mirror unit; And control the frequency range channel selecting of one-level receiver in the high spectrum receiver unit of said microwave; And the manually-operated of the high spectral radiometer of controlled microwave or automation mechanized operation.

Optional before collecting said voltage signal and face of land weather data, said method can also comprise:

The control signal that receiving remote sends; Rotational angle according to microwave reflection mirror unit described in the high spectral radiometer of said control signal controlled microwave; And the frequency range channel selecting of controlling one-level receiver in the high spectrum receiver unit of said microwave; And the manually-operated of the high spectral radiometer of controlled microwave or automation mechanized operation.

The implementation procedure of each step sees function and effect corresponding in the said apparatus for details in the said method, repeats no more at this.

Need to prove; In this article; Relational terms such as first and second grades only is used for an entity or operation are made a distinction with another entity or operation, and not necessarily requires or hint relation or the order that has any this reality between these entities or the operation.And; Term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability; Thereby make and comprise that process, method, article or the equipment of a series of key elements not only comprise those key elements; But also comprise other key elements of clearly not listing, or also be included as this process, method, article or equipment intrinsic key element.Under the situation that do not having much more more restrictions, the key element that limits by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises said key element and also have other identical element.

Through the description of above embodiment, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better embodiment under a lot of situation.Based on such understanding; The part that technical scheme of the present invention contributes to prior art in essence in other words can be come out with the embodied of software product; This computer software product can be stored in the storage medium, like ROM/RAM, magnetic disc, CD etc., comprises that some instructions are with so that a computer equipment (can be a personal computer; Server, the perhaps network equipment etc.) carry out the described method of some part of each embodiment of the present invention or embodiment.

The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.

Claims (13)

1. the high spectrum digital processing and control unit of microwave is characterized in that, comprising: the high spectrum digital processing element of collecting unit and microwave, wherein,

Said collecting unit is used for gathering voltage signal that has the bright temperature information of sky and the required real-time face of land weather data of atmosphere profile inverting that the high spectrum receiver unit of the high spectral radiometer microwave of microwave is exported; And said voltage signal and face of land weather data be transferred to the high spectrum digital processing unit of said microwave;

The high spectrum digital processing element of said microwave; Be used to receive voltage signal that has the bright temperature information of sky and the required real-time face of land weather data of atmosphere profile inverting that collecting unit sends, said face of land weather data comprises: the radiation temperature of black matrix reference source and the absolute pressure of atmosphere; And be the meteorologic parameter curve with said voltage signal and face of land weather data inverting.

2. device according to claim 1 is characterized in that, said collecting unit comprises:

The HSDA unit is used to gather the voltage signal that has the bright temperature information of sky of the high spectrum receiver unit output of microwave;

The global location unit is used to measure the global position system GPS data, so that clock is positioned;

Temperature Humidity Sensor is used to detect temperature, the humidity information on the face of land;

Baroceptor is used to detect the pressure information on the face of land.

3. device according to claim 1 is characterized in that, the high spectrum digital processing element of said microwave comprises:

The Neural Network Data processing unit is used to obtain the disclosed for many years atmospheric temperature profile of local weather bureau, air pressure profile and vapour pressure profile; Said atmospheric temperature profile, air pressure profile and vapour pressure profile are scaled the bright temperature matrix of first atmosphere; And the bright temperature matrix of said first atmosphere is carried out frequency spectrum compress the bright temperature matrix of first atmosphere after obtaining compressing; And utilize neural network algorithm that the bright temperature matrix of first atmosphere after compressing is carried out training managing, obtain the high spectrum neural network of the required microwave of having trained in inverting unit, and store the high spectrum neural network of said microwave of having trained;

The inverting unit, the high spectrum neural network of microwave that is used for having trained according to said Neural Network Data processing unit is meteorologic parameter curve or atmosphere profile with voltage signal that has the bright temperature information of sky and the required real-time face of land weather data inverting of atmosphere profile inverting that said collecting unit collects.

4. device according to claim 3 is characterized in that, said Neural Network Data processing unit comprises:

The profile collector unit is used to add up the disclosed for many years atmospheric temperature profile of local weather bureau, air pressure profile and vapour pressure profile;

Bright temperature analogue unit is used for said atmospheric temperature profile, air pressure profile and the vapour pressure profile of statistics are scaled the bright temperature matrix of big first gas; The bright temperature matrix of said first atmosphere comprises the bright temperature information of atmosphere of high frequency spectrum resolution for many years;

The high spectral information compression unit of first microwave is used for the bright temperature matrix of first atmosphere of said bright temperature analogue unit output is carried out frequency spectrum compression, the bright temperature matrix of first atmosphere after obtaining compressing;

The neural metwork training unit; Be used to utilize neural network algorithm to carry out training managing to compressing the bright temperature matrix of back first atmosphere according to said atmospheric temperature profile, air pressure profile and vapour pressure profile; Obtain the high spectrum neural network of the required microwave of having trained in inverting unit, and store the high spectrum neural network of said microwave of having trained.

5. device according to claim 4 is characterized in that, said neural metwork training unit comprises:

Input port is used to import local atmospheric temperature profile, air pressure profile and the vapour pressure profile that said profile collector unit is added up;

Neuron; Be used for utilizing atmospheric temperature profile, air pressure profile and the vapour pressure profile of input port input that the bright temperature matrix of first atmosphere after compressing is carried out iteration convergence, obtain the high spectrum neural network of the required microwave of having trained in inverting unit through the neural network of setting;

Output port is used to export the neural network of having trained behind the said neuron iteration convergence.

6. device according to claim 3 is characterized in that, said inverting unit comprises:

Bright temperature data processing unit is used to obtain the bright temperature information of atmosphere that said collecting unit is gathered, and according to the bright temperature information of said atmosphere, produces the bright temperature matrix of second atmosphere, and the bright temperature matrix of said second atmosphere is transferred to the high spectral information compression unit of second microwave;

The high spectral information compression unit of second microwave, the bright temperature matrix of second atmosphere that said bright temperature data processing unit is exported carries out frequency spectrum compression, the bright temperature matrix of second atmosphere after obtaining compressing;

The Processing with Neural Network unit, the high spectrum neural network of microwave that is used for having trained according to said neural metwork training unit is meteorologic parameter curve or atmosphere profile with the bright temperature inverse matrix of said second atmosphere.

7. according to each described device of claim 1 to 6, it is characterized in that, also comprise:

Control module was used for before said collecting unit collects said voltage signal and the face of land weather data rotational angle of controlled microwave mirror unit; And control the frequency range channel selecting of one-level receiver in the high spectrum receiver unit of said microwave; And the manually-operated of the high spectral radiometer of controlled microwave or automation mechanized operation.

8. device according to claim 7 is characterized in that, said control module comprises:

The rotatable platform control module is used for the controlled microwave mirror unit and turns to appointment degree of facing upward and position angle, so that said microwave reflection mirror unit is consistent with the center of the receiving antenna unit of the high spectrum receiver unit connection of said microwave;

The receiver control module, the frequency range that is used for the high spectrum receiver unit of controlled microwave one-level receiver is divided;

The execute-in-place unit is used for the front panel of the high spectral radiometer of microwave is directly operated.

9. according to each described device of claim 1 to 6, it is characterized in that, also comprise:

The operated from a distance control module; Be used for before said collecting unit is gathered the required real-time face of land weather data of the voltage signal that has the bright temperature information of sky and the inverting of atmosphere profile of the high spectral radiometer output of microwave; The control signal that receiving remote sends is according to the rotational angle of microwave reflection mirror unit described in the high spectral radiometer of said control signal controlled microwave; And the frequency range channel selecting of controlling one-level receiver in the high spectrum receiver unit of said microwave; And the manually-operated of the high spectral radiometer of controlled microwave or automation mechanized operation.

10. high spectrum digital processing of microwave and control method is characterized in that, comprising:

Gather the voltage signal that has the bright temperature information of sky and the required real-time face of land weather data of atmosphere profile inverting of the high spectrum receiver unit output of microwave in the high spectral radiometer of microwave; Said face of land weather data comprises: the radiation temperature of black matrix reference source and the absolute pressure of atmosphere;

With said voltage signal and the required real-time face of land weather data inverting of atmosphere profile inverting that has the bright temperature information of sky is the meteorologic parameter curve.

11. method according to claim 10 is characterized in that, said is the meteorologic parameter curve with said voltage signal and the required real-time face of land weather data inverting of atmosphere profile inverting that has the bright temperature information of sky, comprising:

Add up the disclosed for many years atmospheric temperature profile of local weather bureau, air pressure profile and vapour pressure profile; Said atmospheric temperature profile, air pressure profile and vapour pressure profile are scaled the bright temperature matrix of atmosphere; And the bright temperature matrix of said atmosphere is carried out frequency spectrum compress the bright temperature matrix of the atmosphere after obtaining compressing; And utilize neural network algorithm to carry out training managing to compressing the bright temperature matrix of back atmosphere, the high spectrum neural network of the microwave of having been trained, and store the high spectrum neural network of said microwave of having trained;

Voltage signal that has the bright temperature information of sky and the required real-time face of land weather data inverting of atmosphere profile inverting that to obtain according to the high spectrum neural network of said microwave of having trained are meteorologic parameter curve or atmosphere profile.

12., it is characterized in that before collecting said voltage signal and face of land weather data, said method also comprises according to claim 10 or 11 described methods:

The rotational angle of controlled microwave mirror unit; And control the frequency range channel selecting of one-level receiver in the high spectrum receiver unit of said microwave; And the manually-operated of the high spectral radiometer of controlled microwave or automation mechanized operation.

13., it is characterized in that before collecting said voltage signal and face of land weather data, said method also comprises according to claim 10 or 11 described methods:

The control signal that receiving remote sends;

Rotational angle according to microwave reflection mirror unit described in the high spectral radiometer of said control signal controlled microwave; And the frequency range channel selecting of controlling one-level receiver in the high spectrum receiver unit of said microwave; And the manually-operated of the high spectral radiometer of controlled microwave or automation mechanized operation.

Images