So, I am going to measure the correlation between at time t and t plus delta t this is going to be expected value of Z of t Z star of t plus delta t I am going to approximate this with the time average of Zr of t plus j times Zi of t that is the first term second term Zr of t plus delta t because of the conjugate sign it becomes minus j Zi of t plus delta t time average of that.
इसलिए, मैं टाइम और के बीच के कोरिलेशन को मापने जा रहा हूं, तो यह होगा मैं इसे टाइम एवरेज के साथ अनुमानित करने जा रहा हूं। तो यह बन जायेगा