additive signal 中文意思是什麼
additive signal
解釋
加性信號-
Two detection methods of chirp signals are presented in the dissertation : the cyclic autocorrelation detection method and the correlation detection method of cyclic autocorrelation function. it is shown that the two methods both have an excellent performance of blind detection. the performance analyses of the two detection methods are both carried out for additive noise or multiplicative noise, and the output signal - to - noise ratio ( snr ) expressions of the two methods are also derived
通過研究提出了兩種線性調頻信號的檢測方法?基於循環自相關函數包絡的檢測方法和基於循環自相關函數的相關函數包絡的檢測方法，兩種方法均可實現信號的盲檢測，有良好的檢測性能，文中還分析了加性噪聲及存在乘性和加性噪聲情況下兩種檢測方法的性能，推導出了輸出信噪比公式。 -
When sampling period is very low or close to ideal case for signal detection in additive gaussian white noise ( agwn ), the detection circuit with matched filter is optimal
摘要在加性高斯白噪聲信號檢測中，在采樣周期極小或接近理想的情況下，連有匹配濾波器的檢測電路是最佳的。 -
For the issue of blind parameter estimation of dsss / bpsk signal damaged by strong additive white gaussian noise ( awgn ), this dissertation mainly researches on carrier doubler method ( cdm ), auto - correlation method ( acm ), delay - and - multiply ( dm ) method and fourth - order cumulant 2 - d slice method
針對受強高斯噪聲污染的dsss / bpsk信號對抗技術中的盲參數估計問題，本文著重研究了平方倍頻法、時域自相關法、延遲相乘法三種常規的單參數估計法以及四階累積量2 - d切片多參數估計法。 -
At input end, symmetric - to - asymmetric transformation ( sat ) is implemented before transmitting and transform symmetric signal into asymmetric signal. but additive symmetrical distributed noise is vanishes through odd - order cumulant
在輸入端先採用對稱?反對稱變換，將對稱信號變換為非對稱信號，但對于通道上迭加的對稱性噪聲，通過奇數階累積量運算后會抵消。 -
The stochastic resonance phenomenon in a bistable system under the simultaneous action of multiplicative and additive noise and periodic signal is studied by using the theory of signal - to - noise ( snr ) ratio in the adiabatic limit
利用隨機共振理論，我們研究了在乘性和加性噪聲以及周期性驅動力共同作用下的雙穩系統的隨機共振現象。 -
Sinusoidal frequency estimation is the procedure which can estimate the frequency of sinusoidal waves in additive white gaussian noise through transform and calculation for signal ' s samples
正弦信號頻率估計是指通過對信號采樣值的計算和變換，估計出淹沒于噪聲中的信號的頻率的過程。 -
In the point of - information theory ; - the - baseband binary pulse amplitude modulated ( pam ) signal transmission, via turning the nonlinear receiver ' s parameters, is studied over an additive white gaussian noise ( awgn ) channel. it is demonstrated that the channel capacity of binary communication systems, for a given signal added noise, can be maximized by optimal designed receivers. this new form of sr is referred to as psr in a broad sense
本文研究並設計了含有雙穩態隨機共振系統作為一個接收裝置的基帶數字通信系統，在加性高斯白噪聲通道中，通過研究這個非線性接收器的性能，發現了數字信號傳輸中存在的參數調節隨機共振現象?通道容量隨著系統響應速度的增加具有一個共振峰值，並對這種非線性現象發生的基本機理進行了解釋。 -
First of all, by establishing the observation model of complex harmonic signal and complex linear chirp signal respectively under the co - jamming of additive and multiply noise, the paper constructed cyclic moment detectors of different orders, deduced snr expression of the detector through theoretic analysis, discussed the relation of detector performance and noise statistical characteristic. the curve of detection performance is obtained through monte carlo simulation test, proving the related conclusion derived
首先，論文分別以加性和乘性噪聲聯合干擾下的復諧波信號和復線性調頻信號為觀測模型，構造了基於不同階次的循環矩檢測統計量，從理論上推導出了檢測器的信噪比表達式，分析了檢測器性能與噪聲統計特性的關系，通過monte - carlo模擬試驗得到了檢測性能的曲線，驗證了推導的有關結論。 -
When there is a weak periodic signal is included in a bistable system, the effects of noise on the stochastic resonance in the system is investigated if both multiplicative and additive noise are white noise while the coupling between the two noise terms is colored noise
當雙穩系統中包含有一個微弱的周期性信號，而乘性噪聲和加性噪聲都是白噪聲，只有兩種噪聲之間的禍合為色噪聲時，我們研究了系統的噪聲對隨機共振的影響。 -
Secondly, combining the unified colored noise approximation and the functional analysis, the steady state distribution function is derived when both multiplicative colored noise and additive white noise are included in a bistable system with colored coupling between two kinds of noise. through the two - state theory, the expression of signal - to - noise ratio ( snr ) is obtained. the phenomenon of stochastic resonance is investigated
其次，我們綜合運用統一色噪聲近似和泛函近似的方法，推導了含有乘性色噪聲和加性白噪聲，並且兩種噪聲之間的耦合為色噪聲的雙穩非線性系統的定態分佈摘要不同類型的色噪聲對非線性光學系統的影響函數，然後通過雙態理論求出系統信噪比的解析表達式，對系統的隨機共振現象進行分析。 -
In the thesis, an approach that is based on signal - space concepts is used to efficiently evaluate the ber performance of mpsk and mqam over an additive white gaussian noise channel. in particular, accurate ber approximations are obtained and shown to be in good agreement with system simulation results. it may be useful to research and development of digital modulation technologies in hfc of our country
嘗試採用基於信號空間的分析方法，給出了awgn通道中mpsk和mqam的ber的計算方法以及由這種方法得到的ber性能曲線，然後將信號空間分析法得到的結果與通信系統模擬的結果進行比較，證明其與模擬結果較好地吻合。 -
To solve this problem, the output signal of the sensor with additive noises were decomposed, denosied and reconstructed by wavelet analysis
利用消噪后的信號，通過系統辨識方法建立傳感器動態特性的補償環節。 -
We give out the coordinative estimations of signal & noise. this method is applicable for all additive white noises. and it can be used to identify signal simultaneously
給出了信號與噪聲的聯合估計，該方法適用任意加性白噪聲，且可同時對信號進行識別，有一定的普遍意義。 -
Finally, we discuss application of kalman filtering. the optimality of multi - sensor kalman filtering fusion with feedback is presented and a filter bank based on wavelets and equipped with a miltiscale kalman filter is proposed for estimating fractal signal in additive gaussian white noise
最後，我們討論了卡爾曼濾波在實際中的應用，分析了多傳感器反饋卡爾曼濾波融合的最優性，並且基於小波變換利用卡爾曼濾波對淹沒在高斯白噪聲中的分形信號進行了波形估計。
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