matlab - comparing modem.oqpsk probability error and ber -


hi वर्तमान में मेरे पास मेरे matlab में निम्न कोड है 

  values ​​= [0; 1 ; 0; 0; 1; 0; 1; 0]; % में केवल 0 एस और 1 एस एच = मॉडेम। ओकक्स्केमोड हो सकते हैं; Y = कमांड (एच, मान); जी = मॉडेम। ओक्सास्कडमॉड (एच); Z = डिमोड्यूट (जी, वाई); बीईआर = योग (तार्किक (मूल्य (:) - z (:))) / अंक (मूल्य);% gnovice के लिए धन्यवाद!

अब मेरा प्रश्न है कि मैं इस बीईआर की तुलना OQPSK की संभाव्यता त्रुटि में कैसे कर सकता हूं?

ऊपर के मॉड्यूलेशन / डिमोड्युलेशन प्रक्रिया के माध्यम से आपके द्वारा मानों के विभिन्न सेटों को चलाने के बाद, परिणामस्वरूप औसत बीईआर उपाय है एक अनुमान एक त्रुटि उत्पन्न होने के लिए बिट-वार संभावना की।

शायद आप ऊपर के अनुमान की वास्तविक व्युत्पन्न सूत्र की तुलना करना चाहते हैं अपेक्षित त्रुटि दर है? कहते हैं कि QPSK के लिए बिट-एरर की संभावना (और मैं भी OQPSK के लिए मानता है) सूत्र द्वारा दी जाती है: 

  Pb = Q (sqrt (2 * Eb / N0));

जहां फ़ंक्शन Q और पैरामीटर Eb और N0 का वर्णन किया गया है।

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