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Among those algorithms the MUSIC algorithm still has the best estimation accuracy and resolution, stability[2][3], however the MUSIC algorithm for space-time 2D signal model still has bad coherent signals resolution capacity[4], and its amount of calculation is also very huge, in order to solve these two problems, and further improve the practicability, the spatial smoothing technique for the estimation of coherent signals is extended to the space-time signal model, on the other hand, the beam space dimension reduction algorithm is extended to space-time signal model to reduce amount of calculation of MUSIC algorithm, this paper focuses on those two aspects.
Distortionless Space-time Spectrum Estimate Algorithm in Switch Antenna Array System[J].Journal of Data Acquisition and Processing, Vol.26, No.6, 2011, pp.654-660

Consequently, increasing car engine efficiency is important in energetic saving and emission reduction.
Fig. 5 shows the data of the first 3BL experiment and normal operating experiment.

During signal processing with filter of high quality, such method can offer better detection effects by avoidance of information loss and reduction of signal distortion due to noise contaminant. 2.3 Improved MUDW Definition signal: Signal analysis operator, detail analysis operator , signal synthesis  operator: Signal analysis operator: (7) Detail analysis operator: (8) Signal synthesis operator: (9) is equal operator, , is morphology gradient operator。
In the disturbance detection analysis of power quality, disturbance signal is sine wave distortion. because it is difficult to measure power disturbance waveform data. in this paper, disturbance waveform can be simulated by function expression.

The advantage of adding fly ash into the concrete is reduction - the postponement of hydration heat, which is important for the massive structure.
The shrinkage measurement was subtracted from measurements of creep because the creep measurement data contains in itself the effect of shrinkage.

Table 1 shows the Mn, Mw and Mw/Mn of a, b, c and d by GPC Table 1 The data of GPC Sample Mw (g/mol) Mn (g/mol) d(Mw/Mn) a 12050 9958 1.21 b 365045 274469 1.33 c 25298 18739 1.35 d 157056 113808 1.38 Conclusions Biodegradable hydroxy-functionalized polymer HO-POEOMA is successfully prepared by ATRP of OEOMA in the presence of HO-EBiB in water and inverse miniemulsion of water/cyclohexane at ambient temperature (300C).
TPMA is effective complex for the polymerization and the reduction solvent ascorbic acid plays an important role in the molecular weight of the polymer.

Thus, stress strain curve or the most important of its characteristic points can be modeled for any combination of temperature and strain rate, and after all the quantitative relationships for the stress-strain curves are obtained the mean flow stress required to compute the rolling load and torque can then be computed from the roll geometry and pass reduction, to give ε, the roll speed to give έ and the mean temperature to give T for each pass [2].
As can be seen from the figure the calculated values are in a good agreement with the experimental data: the maximum relative error is 9.1%.

Figure.1: Vector plot of velocities along mid-plane level of Model Results To validate the predictions of Model, the end of the line-curtain volumetric air flow data was collected for several cuts in the field representing the modeled cut.
Field testing of the modified scrubber-modified continuous miner demonstrated significant improvements in visibility and dust and quartz reduction, as compared to what was achieved with the current scrubber-current continuous miner dust control system.

Our data indicate that the three-ring bent-core LC 1,3-phenylene-bis(4-butoxybenzylideneamine) exhibits mesogenic properties between 55-60°C.
The reduction of the nucleating sites should result in a larger single crystal.

Reductions of deformation characteristics of material lead up to a drop in stress, that allow to decrease reinforced shell thickness, more usefullyspread reinforcement in section, increase peak load.
Experimental data () of the Young's modulus depending on the temperature of concrete and the graph of the approximating function.

While indirect property indexes indicated eight indexes (heat loss reduction, heat transfer coefficient, clo, air-permeability, moisture regain, water-vapour permeance, equivalent water-vapour permeance and water-vapour permeance resistance) which came from four facets (warm, moisture-penetrability, air-permeability and moisture absorption).
To reduce the impact induced by standard deviation on principal component analysis, all the data were normalized by the following equation: (1) Where x' = correction value, x = original value, xmax = original maximum value, xmin = original minimum value.