A real-time digital signal processing (DSP) system typically consists of several components, including:
1. Input signal: The input signal is the signal to be processed, which is typically acquired from an analog-to-digital converter (ADC) or a digital communication system.
2. Digital signal processing algorithm: The digital signal processing algorithm is the mathematical algorithm that processes the input signal to produce the desired output signal. This algorithm is typically implemented using a digital signal processor (DSP) or a field-programmable gate array (FPGA) programmed with digital signal processing software.
3. Memory: Memory is used to store the input signal, intermediate results, and output signal. Memory can be implemented using dynamic random-access memory (DRAM), static random-access memory (SRAM), or flash memory.
4. Output signal: The output signal is the signal that has been processed by the digital signal processing algorithm and is ready for further use or transmission. The output signal is typically sent to a digital-to-analog converter (DAC) or a digital communication system.
5. Clock and timing circuitry: The clock and timing circuitry provides synchronization signals and timing information to ensure that the digital signal processing algorithm operates correctly and in real-time.
6. Power supply: The power supply provides the necessary voltage and current to operate the digital signal processing system.
The block diagram of a typical real-time DSP system is shown below:
```
+-------------------+
| Input Signal |
+-------------------+
|
V
+-------------------+
| Digital Signal |
| Processing |
| Algorithm |
+-------------------+
|
V
+-------------------+
| Memory |
+-------------------+
|
V
+-------------------+
| Output Signal |
+-------------------+
```
In summary, a real-time DSP system consists of an input signal, a digital signal processing algorithm, memory, an output signal, clock and timing circuitry, and a power supply. Each component plays a critical role in the processing of the input signal to produce the desired output signal.