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Signal generator with optional simulation of channel fading, distortion and noise, employs two base band units, frequency changer, adder and I-Q modulator
Signal generator with optional simulation of channel fading, distortion and noise, employs two base band units, frequency changer, adder and I-Q modulator
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机译:信号发生器具有可选的信道衰落,失真和噪声仿真,采用两个基带单元,变频器,加法器和I-Q调制器
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摘要
The signal generator (1) has two base band units (2a, 2b) producing a digital baseband signal. The output signal of the first (2a) is connected to a frequency changer (40a), which shifts it in frequency. Outputs from the second baseband unit (2b) and the frequency changer (40a) are added (11a). An I/Q modulator (20a) follows the adder (11a).
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机译:信号发生器(1)具有两个产生数字基带信号的基带单元(2a,2b)。第一个(2a)的输出信号连接到变频器(40a),该变频器对其频率进行移位。来自第二基带单元(2b)和变频器(40a)的输出被相加(11a)。 I / Q调制器(20a)跟随加法器(11a)。
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