build an OQPSK passband model

3 次查看（过去 30 天）
Owen
Owen 2013-4-19
回答： Tasos Giannoulis 2017-1-30
Hi,
I have to build an OQPSK passband model. Now there are two choices:
1. modem.oqpskmod function (in form of I+jQ) + multiplication (as mixer) + passband filter (to filter out images)
2. 2 Bits in groups and then 00: represented as cos(wt + 45 degrees) 01: represented as cos(wt + 135 degrees) 10: represented as cos(wt + 225 degrees) 11: represented as cos(wt + 315 degrees)
Which method is better?
Best Wishes Owen

请先登录，再回答此问题。

回答（1 个）

Tasos Giannoulis
Tasos Giannoulis 2017-1-30
Hi Owen,
Why do you want a passband signal? You can get the baseband oqpsk signal, e.g., with oqpskmod or comm.OQPSKModulator, and if you want to transmit or receive, then you can simple specify the frequency (e.g., 2.4. GHz) at the radio transmitter/receiver. The radio will do the upconversion/downconversion for you.
Tasos

类别

在 Help Center 和 File Exchange 中查找有关 Modulation 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by