From: An analog hardware solution for compressive sensing reconstruction using gradient-based method

Input signal circuits | Block 1 | Block 2 | Block 3 | Block 4 | Total | |
---|---|---|---|---|---|---|

Amplifiers | N^{3} + N^{2} + 3N | 2 N | N | N^{3} + N^{2} + 6N | ||

Adders | 2 N^{2} + 4 N | N + 3 | N + 2 | 2 N^{2} + 6 N + 5 | ||

Absolute value circuits | 2 N^{2} | 2 N^{2} | ||||

Sample and hold amplifiers | N | N | 2 N | 1 | N | 5 N + 1 |

Switches | N + 2 | 4 N | N + 1 | N + 3 | 7 N + 6 | |

Multipliers/divisions | 3 N + 4 | 2 N + 1 | 5 N + 5 |