显示错误：NSAMP must be an integer greater than 1.

这个错误通常是由于调制函数的参数设置不正确导致的。NSAMP是指每个符号采样的点数，必须是大于1的整数。如果NSAMP小于2，就会出现这个错误。

你可以尝试修改调制函数的NSAMP参数，确保它是一个大于1的整数。例如，如果你想将每个符号采样100个点，可以将NSAMP设置为100，如下所示：

txSig = fskmod(msg, M, fc, nsamp, fs);

如果你已经将NSAMP设置为大于1的整数，但仍然出现这个错误，可能是由于其他参数设置不正确导致的。你可以检查调制函数的其他参数，比如调制阶数M、载波频率fc、采样率fs等是否合理。如果你仍然无法解决问题，请提供更多的代码和错误信息，以便我更好地帮助你。

相关问题

use matlab to Given a positive integer 'n', the task is to find a prime number greater than or equal to 'n'. Example 1 If given 'n' is 10, then the closest prime number greater than 10 is 11 at a distance of 1. So 11 must be returned. Example 2 If the given 'n' is 17, then the closest prime number is itself at a distance of 0. So 17 must be returned. The returned prime number must be greater than or equal to 'n'.

Here is one way to solve the problem using MATLAB:

function prime = find_closest_prime(n)
% Given a positive integer 'n', find the closest prime number greater than or equal to 'n'

% Check if n itself is a prime number
if isprime(n)
    prime = n;
    return
end

% Start checking for prime numbers starting from n and incrementing by 1
i = n;
while true
    if isprime(i)
        prime = i;
        return
    end
    i = i + 1;
end
end

This function checks if the input `n` itself is a prime number using the `isprime` function provided by MATLAB. If it is, then it returns `n` itself as the closest prime number. Otherwise, it starts checking for prime numbers greater than `n` by incrementing `i` by 1 until it finds a prime number using the same `isprime` function. Once it finds a prime number, it returns it as the closest prime number greater than or equal to `n`.

Given a positive integer 'n', the task is to find a prime number greater than or equal to 'n'. Example 1 If given 'n' is 10, then the closest prime number greater than 10 is 11 at a distance of 1. So 11 must be returned. Example 2 If the given 'n' is 17, then the closest prime number is itself at a distance of 0. So 17 must be returned. The returned prime number must be greater than or equal to 'n'.

Here's a Python code that finds the closest prime number greater than or equal to n:

def is_prime(num):
    """
    Returns True if the given number is prime, False otherwise.
    """
    if num <= 1:
        return False
    for i in range(2, int(num ** 0.5) + 1):
        if num % i == 0:
            return False
    return True

def find_closest_prime(n):
    """
    Finds the closest prime number greater than or equal to n.
    """
    if is_prime(n):
        return n
    else:
        i = n
        while True:
            if is_prime(i):
                return i
            i += 1

The function `is_prime` checks if a given number is prime by checking if it is divisible by any number between 2 and the square root of the number.

The function `find_closest_prime` first checks if n is already a prime number. If so, it returns n. Otherwise, it starts checking the next numbers (i.e., i = n+1, n+2, n+3, ...) until it finds a prime number, which it then returns.