Transformations among several chain codes of 8 - site neighborhood binary digital images in square lattice 矩形點陣上八近鄰圖像的鏈碼轉換算法
The digital tv broadcasting samples , measures and encodes traditional analog signals . then it converts them into binary digital signals . after that the digital tv broadcasting processes various functions management , compressing , transmission , storage and record 數(shù)字電視是將傳統(tǒng)的模擬信號經過抽樣,量化和編碼轉換成二進制數(shù)代表的數(shù)字式信號,然后進行各種功能的處理,壓縮,傳輸,存儲和記錄,也可以用計算機進行處理,監(jiān)測和控制。
To overcome the shortcoming of the double - way authentication access control scheme based on harn ' s digital signature , a new double - way authentication protocol is proposed to improve the old one . a new single - key - lock - pair access control scheme is proposed as a improved access control scheme , based on the property that a integer can be denoted into only one binary digital 針對基于harn數(shù)字簽名雙向認證訪問控制實現(xiàn)方案中所存在的問題,運用密碼技術改進了原方案的雙向認證協(xié)議,并作為對原訪問控制方案的改進,基于整數(shù)二進制表示的唯一性,提出了一種新的單鑰-鎖對訪問控制方案。
There are many results on sr with binary digital input . as an extension of our previous works , a dynamic bit error rate ( dber ) is obtained in this thesis . the dber is a more accuracy measure to be used in sr with binary input , because the evaluation of system output is considered more detailedly with the concept of system response speed 對于二進制數(shù)字信號輸入的情況,已有頗多研究結果,本文是在引入了系統(tǒng)響應速度的基礎上,具體結合二進制信號的檢測形式,對上述情況下的系統(tǒng)輸出的統(tǒng)計性態(tài)進行了詳細的研究,并最終得到了一個優(yōu)于以前結果的系統(tǒng)輸出誤碼率公式,給系統(tǒng)參數(shù)的選取提供了更好的依據(jù)。
Parameter - tuning stochastic resonance ( psr ) is a more realistic way to handle the phenomenon of sr in a broad sense . based on the theory of psr , some key problems of using sr in signal processing are studied , these issues include : the application of intrawell sr in multi - frequency analog signal processing , recovery of the waveform distortion caused by the bistable system and other post treatments , measure of system performance with multi - frequency analog digital input and measurement of system performance of binary digital input . the results are used in signal detecting under the background of the real sea noise 隨著參數(shù)調節(jié)隨機共振( psr )概念的提出,隨機共振在信號處理中的應用有著很大拓展的空間,本文就主要研究幾個目前隨機共振在信號處理中應用時經常碰到的問題,其中包括阱內隨機共振現(xiàn)象對多頻模擬信號處理的應用、雙穩(wěn)態(tài)系統(tǒng)輸出的波形畸變的消除及其他后處理、適用于多頻信號的輸出性能衡量指標、二進制數(shù)字信號輸入情況下的系統(tǒng)輸出的性能衡量,并將所得的結果應用到了一個自然界的噪聲? ?海洋噪聲背景下的信號檢測中,這些研究對于隨機共振理論的進一步發(fā)展及其在非線性信號處理中的應用具有重要的意義。